abstracting display, touch and sd

.gitignore

@@ -1,2 +1,3 @@
 build
 !.vscode/*
+build*

AGENT.md

@@ -0,0 +1,311 @@
+# Agent Guide - Building and Compiling
+
+This document provides the correct procedures for building this RP2350 project. Follow these instructions to avoid common pitfalls.
+
+## Build System
+
+This project uses:
+- **CMake** for configuration
+- **Ninja** as the build system (not Make)
+- **Pico SDK 2.2.0** with the VS Code extension
+
+## Initial Setup
+
+The project must be configured with CMake using the **Ninja generator** before building:
+
+```bash
+cd /Users/adolforeyna/Projects/pico-bare-metal/Adolfo/basic1
+rm -rf build  # Clean start
+cmake -B build -G Ninja -DPICO_BOARD=adafruit_feather_rp2350
+```
+
+**IMPORTANT:** Always specify `-G Ninja` when running cmake. Without it, CMake generates Makefiles which won't work with the ninja command.
+
+## Building
+
+### Using Ninja Directly
+
+After cmake configuration:
+
+```bash
+cd /Users/adolforeyna/Projects/pico-bare-metal/Adolfo/basic1/build
+ninja
+```
+
+Or from project root:
+
+```bash
+cd /Users/adolforeyna/Projects/pico-bare-metal/Adolfo/basic1
+ninja -C build
+```
+
+### Using VS Code Task
+
+The project has a "Compile Project" task that runs:
+```bash
+/Users/adolforeyna/.pico-sdk/ninja/v1.12.1/ninja -C /path/to/build
+```
+
+However, this task will fail if `build.ninja` doesn't exist. You must run cmake first.
+
+### Quick Rebuild
+
+If you only changed source files (not CMakeLists.txt):
+
+```bash
+cd build
+ninja
+```
+
+If you changed CMakeLists.txt or added/removed files:
+
+```bash
+cd build
+cmake -G Ninja ..
+ninja
+```
+
+## Building for Different Boards
+
+### Single Board
+
+```bash
+# Clean and configure for specific board
+rm -rf build
+cmake -B build -G Ninja -DPICO_BOARD=pico2
+cd build && ninja
+```
+
+Available boards:
+- `adafruit_feather_rp2350` (default)
+- `pico2`
+- `pico2_w`
+
+### All Boards at Once
+
+Use the provided script:
+
+```bash
+./build_all_boards.sh
+```
+
+This creates:
+- `build_adafruit_feather_rp2350/basic1.uf2` → `basic1_adafruit_feather_rp2350.uf2`
+- `build_pico2/basic1.uf2` → `basic1_pico2.uf2`
+- `build_pico2_w/basic1.uf2` → `basic1_pico2_w.uf2`
+
+## Verifying Build Success
+
+### Check for Output Files
+
+```bash
+ls -lh build/basic1.{uf2,elf,bin}
+```
+
+Successful build produces:
+- `basic1.uf2` - Flash file for bootloader (≈150KB)
+- `basic1.elf` - Executable with debug symbols (≈1.1MB)
+- `basic1.bin` - Raw binary (≈74KB)
+- `basic1.hex` - Intel HEX format
+- `basic1.dis` - Disassembly (≈877KB)
+
+### Check File Timestamp
+
+```bash
+stat build/basic1.uf2
+```
+
+Verify the modification time is recent.
+
+### Look for Ninja Success Message
+
+Successful build ends with:
+```
+[90/90] Linking CXX executable basic1.elf
+```
+
+Failed build shows:
+```
+ninja: build stopped: subcommand failed.
+```
+
+## Common Issues and Solutions
+
+### Issue: "ninja: error: loading 'build.ninja': No such file or directory"
+
+**Cause:** CMake wasn't run or didn't generate Ninja files
+
+**Solution:**
+```bash
+cd /Users/adolforeyna/Projects/pico-bare-metal/Adolfo/basic1
+cmake -B build -G Ninja -DPICO_BOARD=adafruit_feather_rp2350
+```
+
+### Issue: Build directory has Makefiles instead of build.ninja
+
+**Cause:** CMake was run without `-G Ninja`
+
+**Solution:**
+```bash
+rm -rf build
+cmake -B build -G Ninja -DPICO_BOARD=adafruit_feather_rp2350
+```
+
+### Issue: Compilation errors after adding new files
+
+**Cause:** CMakeLists.txt not updated or cmake not re-run
+
+**Solution:**
+1. Add new files to `CMakeLists.txt` in the `add_executable()` section
+2. Re-run cmake:
+   ```bash
+   cd build
+   cmake -G Ninja ..
+   ninja
+   ```
+
+### Issue: Changes not reflected in build
+
+**Cause:** Stale build cache
+
+**Solution:**
+```bash
+cd build
+ninja clean
+ninja
+```
+
+Or full rebuild:
+```bash
+rm -rf build
+cmake -B build -G Ninja -DPICO_BOARD=adafruit_feather_rp2350
+cd build && ninja
+```
+
+## Checking for Errors
+
+### Compilation Errors
+
+Look for errors in ninja output:
+```
+[12/90] Building CXX object CMakeFiles/basic1.dir/basic1.cpp.o
+FAILED: CMakeFiles/basic1.dir/basic1.cpp.o
+...
+error: 'foo' was not declared in this scope
+```
+
+### Viewing Recent Build Output
+
+```bash
+cd build
+ninja 2>&1 | tail -50  # Last 50 lines
+```
+
+### Viewing Full Build Output
+
+```bash
+cd build
+ninja 2>&1 | tee build.log
+```
+
+## Build Output Location
+
+```
+build/
+├── basic1.uf2          # Main flash file
+├── basic1.elf          # Executable with symbols
+├── basic1.bin          # Raw binary
+├── basic1.hex          # Intel HEX
+├── basic1.dis          # Disassembly
+├── basic1.elf.map      # Memory map
+├── build.ninja         # Ninja build file (must exist!)
+├── CMakeCache.txt      # CMake configuration
+└── compile_commands.json  # For IDE integration
+```
+
+## Integration with Tools
+
+### VS Code Tasks
+
+The project includes pre-configured tasks in `.vscode/tasks.json`:
+- **Compile Project** - Runs ninja in build directory
+
+These tasks expect `build/build.ninja` to exist.
+
+### CMake Extension
+
+If using CMake Tools extension:
+1. Select kit: "Pico ARM GCC"
+2. Configure with Ninja generator
+3. Build target: "basic1"
+
+## Quick Reference Commands
+
+```bash
+# Full clean build (default board)
+rm -rf build && cmake -B build -G Ninja && ninja -C build
+
+# Full clean build (specific board)
+rm -rf build && cmake -B build -G Ninja -DPICO_BOARD=pico2 && ninja -C build
+
+# Incremental build
+ninja -C build
+
+# Build all boards
+./build_all_boards.sh
+
+# Check build output
+ls -lh build/basic1.uf2
+
+# View compile commands
+cat build/compile_commands.json | grep -A5 basic1.cpp
+```
+
+## Testing Build Success
+
+After building, you can verify the binary contains expected symbols:
+
+```bash
+arm-none-eabi-nm build/basic1.elf | grep -i main
+arm-none-eabi-size build/basic1.elf
+```
+
+## Important Notes
+
+1. **Always use `-G Ninja`** when running cmake
+2. **The build directory must be recreated** when switching boards
+3. **ninja must be run from the build directory** or with `-C build`
+4. **CMake must be re-run** after modifying CMakeLists.txt
+5. **The Pico SDK path** is at `~/.pico-sdk/sdk/2.2.0`
+6. **The toolchain** is at `~/.pico-sdk/toolchain/14_2_Rel1`
+7. **Output files** are always in the `build/` directory (or board-specific build dirs)
+
+## When Making Changes
+
+| Change Type | Required Action |
+|-------------|-----------------|
+| Source code (.cpp, .c) | `ninja -C build` |
+| Header files (.h) | `ninja -C build` |
+| CMakeLists.txt | `cd build && cmake -G Ninja .. && ninja` |
+| New board | `rm -rf build && cmake -B build -G Ninja -DPICO_BOARD=<board> && ninja -C build` |
+| New files | Update CMakeLists.txt, then re-run cmake |
+| board_config.h | `ninja -C build` |
+
+## Flashing
+
+After successful build:
+
+1. **Manual:** Hold BOOTSEL, connect USB, copy `build/basic1.uf2` to mounted drive
+2. **Script:** `./build_and_flash.sh` (requires openocd or picotool)
+3. **VS Code:** Use "Run Project" or "Flash" tasks
+
+## Serial Monitor
+
+View serial output:
+
+```bash
+screen /dev/cu.usbmodem101
+# Exit: Ctrl-A, then K, then Y
+```
+
+Or use VS Code's serial monitor extension.

CMakeLists.txt

@@ -23,7 +23,11 @@ if (EXISTS ${picoVscode})
     include(${picoVscode})
 endif()
 # ====================================================================================
-set(PICO_BOARD adafruit_feather_rp2350 CACHE STRING "Board type")
+# Default to Feather RP2350, but allow override via -DPICO_BOARD=<board>
+if(NOT PICO_BOARD)
+    set(PICO_BOARD adafruit_feather_rp2350 CACHE STRING "Board type")
+endif()
+message(STATUS "Building for board: ${PICO_BOARD}")
 
 # Pull in Raspberry Pi Pico SDK (must be before project)
 include(pico_sdk_import.cmake)
@@ -37,16 +41,22 @@ pico_sdk_init()
 
 add_executable(basic1 
     basic1.cpp 
-    st7796.c 
+    lib/st7796/st7796.c 
-    ft6336u.c 
+    lib/ft6336u/ft6336u.c 
-    sd_card.c 
+    lib/sd_card/sd_card.c 
-    low_level_render.cpp 
+    display/low_level_render.cpp 
-    low_level_gui.cpp
+    display/low_level_gui.cpp
+    display/low_level_display_factory.cpp
+    display/low_level_display_st7796.cpp
+    display/low_level_display_st7789.cpp
+    display/low_level_display_epaper.cpp
+    display/low_level_touch_factory.cpp
+    display/low_level_touch_ft6336u.cpp
     diskio_sdcard.c
     fatfs_time.c
-    fatfs/source/ff.c
+    lib/fatfs/source/ff.c
-    fatfs/source/ffsystem.c
+    lib/fatfs/source/ffsystem.c
-    fatfs/source/ffunicode.c
+    lib/fatfs/source/ffunicode.c
 )
 
 pico_set_program_name(basic1 "basic1")
@@ -62,8 +72,12 @@ target_link_libraries(basic1
 
 # Add the standard include files to the build
 target_include_directories(basic1 PRIVATE
-        ${CMAKE_CURRENT_LIST_DIR}
+    ${CMAKE_CURRENT_LIST_DIR}
-        ${CMAKE_CURRENT_LIST_DIR}/fatfs/source
+    ${CMAKE_CURRENT_LIST_DIR}/lib/fatfs/source
+    ${CMAKE_CURRENT_LIST_DIR}/lib/st7796
+    ${CMAKE_CURRENT_LIST_DIR}/lib/ft6336u
+    ${CMAKE_CURRENT_LIST_DIR}/lib/sd_card
+    ${CMAKE_CURRENT_LIST_DIR}/display
 )
 
 # Add any user requested libraries
@@ -71,7 +85,7 @@ target_link_libraries(basic1
         hardware_spi
         hardware_i2c
         m
-        )
+)
 
 pico_add_extra_outputs(basic1)
 

README.md

@@ -0,0 +1,357 @@
+# RP2350 TFT Display with Touch and SD Card Demo
+
+A modular embedded application for RP2350 microcontrollers featuring display, touch, and SD card support with hardware abstraction layers.
+
+## Features
+
+- **Display Abstraction Layer** - Support for multiple display types (ST7796, ST7789, E-Paper)
+- **Touch Abstraction Layer** - Extensible touch controller support (FT6336U)
+- **SD Card with FatFS** - File system support with board-aware initialization
+- **Multi-Board Support** - Automatic pin configuration for different RP2350 boards
+- **1-bit Rendering** - Memory-efficient monochrome graphics with GUI widgets
+- **Board Configuration** - Single configuration file for all hardware settings
+
+## Supported Hardware
+
+### Boards
+1. **Adafruit Feather RP2350** (default)
+2. **Raspberry Pi Pico 2**
+3. **Raspberry Pi Pico 2 W**
+
+### Displays
+- ST7796 (480x320 TFT LCD) - Fully implemented
+- ST7789 - Ready for driver implementation
+- E-Paper - Ready for driver implementation
+
+### Touch Controllers
+- FT6336U (I2C capacitive touch) - Fully implemented
+- Extensible for additional controllers
+
+### Storage
+- SD Card via SPI with FatFS file system
+
+## Quick Start
+
+### Building for Default Board (Feather RP2350)
+
+```bash
+mkdir -p build
+cd build
+cmake -G Ninja ..
+ninja
+```
+
+### Building for Specific Board
+
+```bash
+cmake -G Ninja -DPICO_BOARD=pico2 ..
+ninja
+```
+
+Available boards: `adafruit_feather_rp2350`, `pico2`, `pico2_w`
+
+### Building for All Boards
+
+```bash
+./build_all_boards.sh
+```
+
+Generates:
+- `basic1_adafruit_feather_rp2350.uf2`
+- `basic1_pico2.uf2`
+- `basic1_pico2_w.uf2`
+
+### Flashing
+
+1. Hold BOOTSEL button while connecting USB
+2. Copy the `.uf2` file to the mounted drive
+3. Device will automatically reboot and run
+
+Or use the flash script:
+```bash
+./build_and_flash.sh
+```
+
+## Project Structure
+
+```
+basic1/
+├── basic1.cpp                      # Main application
+├── board_config.h                  # Board-specific pin configuration
+├── CMakeLists.txt                  # Build configuration
+├── build_all_boards.sh             # Multi-board build script
+├── build_and_flash.sh              # Build and flash helper
+│
+├── display/                        # Display and GUI abstraction
+│   ├── low_level_display.h         # Display interface
+│   ├── low_level_display_*.cpp     # Display implementations
+│   ├── low_level_touch.h           # Touch interface
+│   ├── low_level_touch_*.cpp       # Touch implementations
+│   ├── low_level_render.h/cpp      # 1-bit rendering engine
+│   └── low_level_gui.h/cpp         # GUI widgets
+│
+├── lib/                            # Hardware drivers
+│   ├── ft6336u/                    # FT6336U touch driver
+│   ├── st7796/                     # ST7796 display driver
+│   ├── sd_card/                    # SD card driver with FatFS test
+│   └── fatfs/                      # FatFS filesystem
+│
+├── fonts/                          # Bitmap font definitions
+└── fatfs_time.c                    # FatFS timestamp (uses compile time)
+```
+
+## Configuration
+
+### Board Configuration (`board_config.h`)
+
+All hardware settings are defined per board:
+
+```c
+// Display configuration
+#define DISPLAY_WIDTH 480
+#define DISPLAY_HEIGHT 320
+#define DISPLAY_TYPE_SELECTED 0  // DISPLAY_TYPE_ST7796
+
+// Touch configuration
+#define TOUCH_TYPE_SELECTED 0  // TOUCH_TYPE_FT6336U
+#define TOUCH_SWAP_XY true
+#define TOUCH_INVERT_X true
+#define TOUCH_INVERT_Y false
+
+// SPI pins for display
+#define DISPLAY_SPI_PORT spi1
+#define DISPLAY_SCK_PIN  18
+#define DISPLAY_MOSI_PIN 19
+#define DISPLAY_MISO_PIN 20
+#define DISPLAY_CS_PIN   17
+// ... more pins
+```
+
+### Changing Display Type
+
+Modify `DISPLAY_TYPE_SELECTED` in `board_config.h`:
+- `0` = ST7796 (480x320 TFT)
+- `1` = ST7789
+- `2` = E-Paper
+
+### Changing Touch Type
+
+Modify `TOUCH_TYPE_SELECTED` in `board_config.h`:
+- `0` = FT6336U
+- `1` = None (disable touch)
+
+### Touch Coordinate Transformation
+
+Adjust orientation in `board_config.h`:
+```c
+#define TOUCH_SWAP_XY true      // Swap X/Y coordinates
+#define TOUCH_INVERT_X true     // Invert X axis
+#define TOUCH_INVERT_Y false    // Invert Y axis
+```
+
+## Architecture
+
+### Display Abstraction Layer
+
+Provides a unified interface for different display types:
+
+```cpp
+class LowLevelDisplay {
+public:
+    virtual bool init() = 0;
+    virtual void clear(bool white = true) = 0;
+    virtual void draw_buffer(const uint8_t* bit_buffer) = 0;
+    virtual void refresh() = 0;
+    // ... more methods
+    
+    static LowLevelDisplay* create(DisplayType type, int width, int height);
+};
+```
+
+Usage:
+```cpp
+LowLevelDisplay* display = LowLevelDisplay::create(
+    (DisplayType)DISPLAY_TYPE_SELECTED, V_WIDTH, V_HEIGHT);
+display->init();
+display->draw_buffer(buffer);
+display->refresh();
+```
+
+### Touch Abstraction Layer
+
+Unified interface for touch controllers:
+
+```cpp
+class LowLevelTouch {
+public:
+    virtual bool init() = 0;
+    virtual bool read_touch(TouchData* data) = 0;
+    virtual bool is_touched() = 0;
+    // ... more methods
+    
+    static LowLevelTouch* create(TouchType type, int width, int height,
+                                 bool swap_xy, bool invert_x, bool invert_y);
+};
+```
+
+Usage:
+```cpp
+LowLevelTouch* touch = LowLevelTouch::create(
+    (TouchType)TOUCH_TYPE_SELECTED, V_WIDTH, V_HEIGHT,
+    TOUCH_SWAP_XY, TOUCH_INVERT_X, TOUCH_INVERT_Y);
+    
+TouchData touch_data;
+if (touch->read_touch(&touch_data)) {
+    int x = touch_data.points[0].x;
+    int y = touch_data.points[0].y;
+    // Handle touch
+}
+```
+
+### SD Card Abstraction
+
+Board-aware initialization:
+
+```cpp
+// Initialize with board configuration
+if (sd_card_init_with_board_config()) {
+    // Test FatFS functionality
+    sd_card_test_fatfs();
+}
+```
+
+The test function:
+- Mounts FatFS
+- Lists directory contents
+- Creates and reads test file
+- Safely unmounts filesystem
+
+## Pin Configurations
+
+### Adafruit Feather RP2350
+- **Display (SPI1):** SCK=18, MOSI=19, MISO=20, CS=17, DC=16, RST=15, BL=14
+- **Touch (I2C0):** SDA=4, SCL=5, INT=6, RST=7
+- **SD Card (SPI1):** CS=10 (shares SPI with display)
+
+### Raspberry Pi Pico 2 / Pico 2 W
+- **Display (SPI0):** SCK=2, MOSI=3, MISO=4, CS=5, DC=6, RST=7, BL=8
+- **Touch (I2C0):** SDA=12, SCL=13, INT=14, RST=15
+- **SD Card (SPI1):** CS=17
+
+## Adding New Hardware
+
+### Adding a New Display Driver
+
+1. Create implementation files:
+   ```cpp
+   display/low_level_display_mydriver.h
+   display/low_level_display_mydriver.cpp
+   ```
+
+2. Implement the `LowLevelDisplay` interface
+
+3. Add to factory in `low_level_display_factory.cpp`:
+   ```cpp
+   case DISPLAY_TYPE_MYDRIVER:
+       display = new LowLevelDisplayMyDriver(width, height);
+       break;
+   ```
+
+4. Update `CMakeLists.txt` to include new files
+
+### Adding a New Touch Controller
+
+1. Create implementation files:
+   ```cpp
+   display/low_level_touch_mydriver.h
+   display/low_level_touch_mydriver.cpp
+   ```
+
+2. Implement the `LowLevelTouch` interface
+
+3. Add to factory in `low_level_touch_factory.cpp`
+
+4. Update `CMakeLists.txt`
+
+### Adding a New Board
+
+Edit `board_config.h`:
+
+```c
+#elif defined(PICO_BOARD_MY_CUSTOM_BOARD)
+    #define BOARD_NAME "My Custom Board"
+    
+    // Display configuration
+    #define DISPLAY_WIDTH 480
+    #define DISPLAY_HEIGHT 320
+    #define DISPLAY_TYPE_SELECTED 0
+    
+    // Touch configuration
+    #define TOUCH_TYPE_SELECTED 0
+    // ... define all pins
+#endif
+```
+
+## Memory Usage
+
+- **1-bit framebuffer:** 480×320÷8 = 19.2 KB
+- **Display conversion:** Automatic 1-bit → RGB565/monochrome
+- **Stack/heap:** Minimal, uses static buffers where possible
+
+## Known Issues & Troubleshooting
+
+### Touch Not Working
+- **I2C Communication Failure:** Check wiring, pull-up resistors, I2C address
+- **Wrong Coordinates:** Adjust `TOUCH_SWAP_XY`, `TOUCH_INVERT_X/Y` settings
+
+### SD Card Not Detected
+- **CMD0 Returns 0x00:** Check card insertion, CS pin, SPI wiring
+- **Mount Fails:** Ensure card is formatted as FAT/FAT32
+
+### Display Shows Nothing
+- Check SPI wiring and CS/DC/RST pins
+- Verify backlight is connected and enabled
+- Check voltage levels (3.3V logic)
+
+## Features by Component
+
+### Display Features
+- 1-bit monochrome rendering
+- RGB565 color support (ST7796)
+- Drawing primitives (lines, rectangles, circles)
+- GUI widgets (windows, gauges, status bars)
+- Multiple font support
+
+### Touch Features
+- Multi-touch support (up to 2 points)
+- Coordinate transformation
+- Touch debouncing
+- Event types (press, lift, contact)
+
+### SD Card Features
+- SPI mode support
+- FatFS integration
+- Directory listing
+- File read/write
+- Automatic timestamps from compile time
+
+## License
+
+Copyright (c) 2021 Arm Limited and Contributors. All rights reserved.
+SPDX-License-Identifier: Apache-2.0
+
+## Dependencies
+
+- Raspberry Pi Pico SDK 2.2.0+
+- FatFS (included)
+- TinyUSB (via SDK)
+- Hardware drivers (included in `lib/`)
+
+## Contributing
+
+When adding new features:
+1. Follow the abstraction layer pattern
+2. Update `board_config.h` for hardware settings
+3. Keep application code hardware-agnostic
+4. Test on multiple boards if possible
+5. Update this README

basic1.cpp

@@ -8,17 +8,15 @@
 
 #include "pico/stdlib.h"
 #include "pico/binary_info.h"
-#include "st7796.h"
+#include "board_config.h"  // Board-specific pin configuration
-#include "ft6336u.h"
 #include "sd_card.h"
-#include "hardware/spi.h"
-#include "hardware/i2c.h"
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include "low_level_render.h"
+#include "display/low_level_render.h"
-#include "low_level_gui.h"
+#include "display/low_level_gui.h"
-#include "ff.h"  // FatFS
+#include "display/low_level_display.h"
+#include "display/low_level_touch.h"
 
 
 // Binary info for RP2350 - ensures proper boot image structure
@@ -26,69 +24,9 @@ bi_decl(bi_program_description("4.0\" TFT ST7796 with Touch and SD Card Demo"));
 bi_decl(bi_program_version_string("0.1"));
 bi_decl(bi_program_build_date_string(__DATE__));
 
-const int V_WIDTH = 480;
+// Screen dimensions and configuration from board_config.h
-const int V_HEIGHT = 320;
+const int V_WIDTH = DISPLAY_WIDTH;
-
+const int V_HEIGHT = DISPLAY_HEIGHT;
-// Feather RP2350 with 4.0" TFT (480x320) ST7796 configuration
-const struct st7796_config lcd_config = {
-    .spi      = spi1,
-    .gpio_din = 11,  // MOSI (D11)
-    .gpio_clk = 10,  // SCK (D10)
-    .gpio_cs  = 7,   // CS (D13)
-    .gpio_dc  = 4,   // DC (D4)
-    .gpio_rst = 9,   // RST (D9)
-    .gpio_bl  = 6,   // Backlight (D6)
-};
-
-// Touch screen configuration (adjust pins based on your wiring)
-// Feather RP2350 I2C pin options:
-//   - I2C0: SDA can be GPIO0,4,8,12,16,20,24,28 / SCL can be GPIO1,5,9,13,17,21,25,29
-//   - I2C1: SDA can be GPIO2,6,10,14,18,22,26 / SCL can be GPIO3,7,11,15,19,23,27
-// Note: GPIO2/3 are the Feather's default I2C pins (STEMMA QT connector)
-// Using I2C1 to match GPIO2/3 pins
-//
-// Coordinate transformation options - adjust based on your screen orientation:
-// Try different combinations if touch doesn't align:
-//   swap_xy=false, invert_x=false, invert_y=false (default)
-//   swap_xy=true,  invert_x=false, invert_y=false (90° rotation)
-//   swap_xy=false, invert_x=true,  invert_y=true  (180° rotation)
-//   swap_xy=true,  invert_x=true,  invert_y=true  (270° rotation)
-const ft6336u_config_t touch_config = {
-    .i2c = i2c1,     // Changed to i2c1 to match GPIO2/3
-    .gpio_sda = 2,   // SDA (Feather I2C default, valid for I2C1)
-    .gpio_scl = 3,   // SCL (Feather I2C default, valid for I2C1)
-    .gpio_rst = 28,  // Touch RST (can use any free GPIO)
-    .gpio_int = 25,  // Touch INT (can use any free GPIO)
-    .screen_width = V_WIDTH,
-    .screen_height = V_HEIGHT,
-    .swap_xy = true,    // Try this first for landscape mode
-    .invert_x = true,  // Adjust if X is backwards
-    .invert_y = false   // Adjust if Y is backwards
-};
-
-// SD Card configuration (shares SPI with display)
-const sd_card_config_t sd_config = {
-    .spi = spi1,     // Same SPI as display
-    .gpio_cs = 5,    // SD CS (adjust to your setup)
-    .gpio_miso = 24, // MISO (adjust to your setup)
-    .gpio_mosi = 11, // Same as display MOSI
-    .gpio_sck = 10   // Same as display SCK
-};
-
-const int lcd_width = V_WIDTH;
-const int lcd_height = V_HEIGHT;
-
-// RGB565 color definitions
-#define COLOR_BLACK   0x0000
-#define COLOR_WHITE   0xFFFF
-#define COLOR_RED     0xF800
-#define COLOR_GREEN   0x07E0
-#define COLOR_BLUE    0x001F
-#define COLOR_YELLOW  0xFFE0
-#define COLOR_CYAN    0x07FF
-#define COLOR_MAGENTA 0xF81F
-#define COLOR_ORANGE  0xFC00
-#define COLOR_PURPLE  0x8010
 
 // Touch indicator settings
 #define TOUCH_RADIUS 10
@@ -96,162 +34,20 @@ const int lcd_height = V_HEIGHT;
 uint8_t bit_buffer[V_WIDTH * V_HEIGHT / 8];
 
 /**
- * @brief Convert 1-bit buffer to RGB565 and refresh the screen
+ * @brief Refresh the screen with the 1-bit buffer
  * 
- * Efficiently updates the entire display by:
+ * Displays work directly with 1-bit monochrome buffers.
- * 1. Converting the 1-bit buffer to RGB565 format
+ * The display driver internally converts to its native format (RGB565, etc.)
- * 2. Sending the entire frame in one bulk write operation
  * 
  * @param buffer Pointer to 1-bit framebuffer (width*height/8 bytes)
+ * @param display Pointer to display abstraction layer
  */
-void refresh_screen(const uint8_t *buffer) {
+void refresh_screen(const uint8_t *buffer, LowLevelDisplay* display) {
-    // Allocate RGB565 buffer (2 bytes per pixel)
+    display->draw_buffer(buffer);
-    uint16_t *rgb_buffer = (uint16_t *)malloc(V_WIDTH * V_HEIGHT * sizeof(uint16_t));
+    display->refresh();
-    if (!rgb_buffer) {
-        printf("Error: Failed to allocate RGB buffer for screen refresh\n");
-        return;
-    }
-    
-    // Convert bit buffer to RGB565
-    for (int y = 0; y < V_HEIGHT; y++) {
-        for (int x = 0; x < V_WIDTH; x++) {
-            int byte_index = (y * V_WIDTH + x) / 8;
-            int bit_index = 7 - (x % 8);
-            bool pixel_on = (buffer[byte_index] >> bit_index) & 0x01;
-            rgb_buffer[y * V_WIDTH + x] = pixel_on ? COLOR_WHITE : COLOR_BLACK;
-        }
-    }
-    
-    // Draw entire buffer at once - MUCH faster than pixel-by-pixel!
-    st7796_set_cursor(0, 0);
-    st7796_write(rgb_buffer, V_WIDTH * V_HEIGHT);
-    
-    free(rgb_buffer);
 }
 
-/**
+
- * @brief Test SD card and FatFS functionality
- * 
- * Initializes SD card, mounts FatFS, performs read/write tests,
- * and safely unmounts the filesystem.
- */
-void test_sd_card_and_fatfs(void) {
-    // Initialize SD card
-    bool sd_ok = sd_card_init(&sd_config);
-    if (!sd_ok) {
-        printf("SD Card initialization failed or no card present\n");
-        return;
-    }
-    
-    sd_card_info_t sd_info;
-    sd_card_get_info(&sd_info);
-    printf("SD Card initialized: Type=%d\n", sd_info.type);
-    
-    // Try to read first block
-    uint8_t buffer[512];
-    if (sd_card_read_block(0, buffer)) {
-        printf("Read block 0: ");
-        for (int i = 0; i < 16; i++) {
-            printf("%02X ", buffer[i]);
-        }
-        printf("\n");
-    }
-    
-    // Test FatFS filesystem
-    printf("\n=== FatFS Test ===\n");
-    FATFS fs;
-    FRESULT res = f_mount(&fs, "0:", 1);  // Mount drive 0
-    
-    if (res != FR_OK) {
-        printf("✗ FatFS mount failed (error: %d)\n", res);
-        printf("  Make sure SD card is formatted as FAT/FAT32\n");
-        printf("==================\n\n");
-        return;
-    }
-    
-    printf("✓ FatFS mounted successfully\n");
-    
-    // Get volume information
-    DWORD fre_clust, fre_sect, tot_sect;
-    FATFS *fs_ptr;
-    res = f_getfree("0:", &fre_clust, &fs_ptr);
-    if (res == FR_OK) {
-        tot_sect = (fs_ptr->n_fatent - 2) * fs_ptr->csize;
-        fre_sect = fre_clust * fs_ptr->csize;
-        printf("  Total: %lu KB, Free: %lu KB\n", 
-               tot_sect / 2, fre_sect / 2);
-    }
-    
-    // List root directory
-    printf("\nRoot directory contents:\n");
-    DIR dir;
-    FILINFO fno;
-    res = f_opendir(&dir, "/");
-    if (res == FR_OK) {
-        int file_count = 0;
-        while (1) {
-            res = f_readdir(&dir, &fno);
-            if (res != FR_OK || fno.fname[0] == 0) break;
-            
-            printf("  %s %s (%lu bytes)\n", 
-                   (fno.fattrib & AM_DIR) ? "[DIR]" : "[FILE]",
-                   fno.fname, fno.fsize);
-            file_count++;
-            
-            if (file_count >= 10) {
-                printf("  ... (showing first 10 entries)\n");
-                break;
-            }
-        }
-        f_closedir(&dir);
-        
-        if (file_count == 0) {
-            printf("  (empty)\n");
-        }
-    }
-    
-    // Test file write
-    printf("\nTesting file write...\n");
-    FIL fil;
-    res = f_open(&fil, "test.txt", FA_CREATE_ALWAYS | FA_WRITE);
-    if (res == FR_OK) {
-        const char *test_str = "Hello from RP2350 with FatFS!\n";
-        UINT bytes_written;
-        res = f_write(&fil, test_str, strlen(test_str), &bytes_written);
-        f_close(&fil);
-        
-        if (res == FR_OK) {
-            printf("✓ Wrote %u bytes to test.txt\n", bytes_written);
-            
-            // Read it back
-            res = f_open(&fil, "test.txt", FA_READ);
-            if (res == FR_OK) {
-                char read_buffer[64];
-                UINT bytes_read;
-                res = f_read(&fil, read_buffer, sizeof(read_buffer)-1, &bytes_read);
-                f_close(&fil);
-                
-                if (res == FR_OK) {
-                    read_buffer[bytes_read] = '\0';
-                    printf("✓ Read back: %s", read_buffer);
-                }
-            }
-        }
-    } else {
-        printf("✗ Failed to create test.txt (error: %d)\n", res);
-    }
-    
-    // Safely unmount filesystem
-    printf("\nUnmounting filesystem...\n");
-    res = f_unmount("0:");
-    if (res == FR_OK) {
-        printf("✓ Filesystem unmounted successfully\n");
-    } else {
-        printf("✗ Unmount failed (error: %d)\n", res);
-    }
-    
-    printf("==================\n\n");
-}
 
 
 int main()
@@ -261,11 +57,27 @@ int main()
     stdio_init_all();
     sleep_ms(5000);  // Wait for USB connection (if present)
     
+    printf("\n=== %s Demo ===\n", BOARD_NAME);
+    
+    // Create display abstraction using factory method
+    // The factory handles all board-specific configuration internally
+    LowLevelDisplay* display = LowLevelDisplay::create((DisplayType)DISPLAY_TYPE_SELECTED, V_WIDTH, V_HEIGHT);
+    
+    if (!display) {
+        printf("Failed to create display!\n");
+        return -1;
+    }
+    
     printf("Initializing 4.0\" TFT with Touch and SD Card...\n");
     
-    // Initialize the LCD
+    // Initialize the display
-    st7796_init(&lcd_config, lcd_width, lcd_height);
+    if (!display->init()) {
-    st7796_fill(COLOR_BLACK);
+        printf("Display initialization failed!\n");
+        delete display;
+        return -1;
+    }
+    
+    display->clear(false);  // Clear to black
 
     LowLevelRenderer renderer(bit_buffer, V_WIDTH, V_HEIGHT);
     renderer.set_font(&font_5x5_obj);
@@ -276,31 +88,32 @@ int main()
     gui.draw_circular_gauge(w1, 10, 100 - 10, 200, "SYSTEM EFF.", 68);
     
     // Refresh the screen with the rendered GUI
-    refresh_screen(bit_buffer);
+    refresh_screen(bit_buffer, display);
 
-    // Initialize touch screen
+    // Initialize touch screen using abstraction
-    bool touch_ok = ft6336u_init(&touch_config);
+    LowLevelTouch* touch = LowLevelTouch::create((TouchType)TOUCH_TYPE_SELECTED, V_WIDTH, V_HEIGHT,
-    if (touch_ok) {
+                                                 TOUCH_SWAP_XY, TOUCH_INVERT_X, TOUCH_INVERT_Y);
-        uint8_t chip_id = ft6336u_get_chip_id();
+    
-        uint8_t fw_ver = ft6336u_get_firmware_version();
+    if (touch) {
-        printf("Touch initialized: Chip ID=0x%02X, FW Ver=0x%02X\n", chip_id, fw_ver);
+        printf("Touch initialized successfully\n");
         
-        // Run I2C communication test
+        // Run communication test if available
-        printf("\nRunning I2C reliability test...\n");
+        printf("\nRunning touch reliability test...\n");
-        ft6336u_test_i2c();
+        touch->test_communication();
         printf("\n");
     } else {
-        printf("Touch initialization failed!\n");
+        printf("Touch initialization failed or not configured\n");
     }
     
     // Test SD card and FatFS
-    test_sd_card_and_fatfs();
+    if (sd_card_init_with_board_config()) {
+        sd_card_test_fatfs();
+    } else {
+        printf("SD Card initialization failed or no card present\n");
+    }
     
     // Main loop - handle touch events
     int last_x = -1, last_y = -1;
-    uint16_t current_color = COLOR_CYAN;
-    int color_index = 0;
-    uint16_t colors[] = {COLOR_CYAN, COLOR_YELLOW, COLOR_MAGENTA, COLOR_GREEN, COLOR_RED};
     
     // Touch debouncing
     uint32_t last_touch_time = 0;
@@ -320,13 +133,13 @@ int main()
             continue;
         }
         
-        bool is_touched = touch_ok && ft6336u_is_touched();
+        bool is_touched = touch && touch->is_touched();
         
         // Only process touch if state changed or still touching
         if (is_touched) {
-            ft6336u_touch_data_t touch_data;
+            TouchData touch_data;
             
-            if (ft6336u_read_touch(&touch_data)) {
+            if (touch->read_touch(&touch_data)) {
                 touch_success_count++;
                 
                 if (touch_data.touch_count > 0) {
@@ -340,18 +153,16 @@ int main()
                                touch_success_count, touch_fail_count);
                     //}
                     
-                    // Check if touch is in title area to change color
+                    // Check if touch is in title area to clear screen
                     if (y < 30) {
                         if (!was_touched) {  // Only on new touch
-                            color_index = (color_index + 1) % 5;
+                            // Clear drawing area in bit buffer
-                            current_color = colors[color_index];
+                            renderer.draw_filled_rectangle(11, 130, V_WIDTH - 11 - 11, V_HEIGHT - 11 - 130, false, 1);
-                            
+                            refresh_screen(bit_buffer, display);
-                            // Clear drawing area
+                            printf("Drawing area cleared\n");
-                            st7796_fill_rect(11, 130, lcd_width - 11, lcd_height - 11, COLOR_BLACK);
-                            printf("Color changed to index %d\n", color_index);
                         }
                     }
-                    // Draw in touch area
+                    // Draw in touch area (white line)
                     else if (y > 100) {
                         
                         // Draw line from last position (for smooth drawing)
@@ -360,7 +171,8 @@ int main()
                             int dy = abs(y - last_y);
                             // Only draw line if movement is reasonable (filter noise)
                             if (dx < 50 && dy < 50) {
-                                st7796_draw_line(last_x, last_y, x, y, current_color);
+                                renderer.draw_line(last_x, last_y, x, y, true);
+                                refresh_screen(bit_buffer, display);
                             }
                         }
                         

board_config.h

@@ -0,0 +1,126 @@
+#ifndef BOARD_CONFIG_H
+#define BOARD_CONFIG_H
+
+#include "pico/stdlib.h"
+
+// Forward declare display and touch types (actual enums in respective headers)
+// Display options: DISPLAY_TYPE_ST7796, DISPLAY_TYPE_ST7789, DISPLAY_TYPE_EPAPER
+// Touch options: TOUCH_TYPE_FT6336U, TOUCH_TYPE_NONE
+
+// Board-specific pin definitions and configurations
+
+#if defined(PICO_BOARD_ADAFRUIT_FEATHER_RP2350)
+    // Adafruit Feather RP2350 pinout
+    #define BOARD_NAME "Adafruit Feather RP2350"
+    
+    // Display configuration
+    #define DISPLAY_WIDTH 480
+    #define DISPLAY_HEIGHT 320
+    #define DISPLAY_TYPE_SELECTED 0  // DISPLAY_TYPE_ST7796
+    
+    // Touch configuration
+    #define TOUCH_TYPE_SELECTED 0  // TOUCH_TYPE_FT6336U
+    #define TOUCH_SWAP_XY true
+    #define TOUCH_INVERT_X true
+    #define TOUCH_INVERT_Y false
+    
+    // SPI pins for display
+    #define DISPLAY_SPI_PORT spi1
+    #define DISPLAY_SCK_PIN  18
+    #define DISPLAY_MOSI_PIN 19
+    #define DISPLAY_MISO_PIN 20
+    #define DISPLAY_CS_PIN   17
+    #define DISPLAY_DC_PIN   16
+    #define DISPLAY_RST_PIN  15
+    #define DISPLAY_BL_PIN   14
+    #define DISPLAY_BUSY_PIN 13  // For e-paper displays
+    
+    // I2C pins for touch
+    #define TOUCH_I2C_PORT i2c0
+    #define TOUCH_SDA_PIN  4
+    #define TOUCH_SCL_PIN  5
+    #define TOUCH_INT_PIN  6
+    #define TOUCH_RST_PIN  7
+    
+    // SD card pins (shared SPI with display)
+    #define SD_SPI_PORT    spi1
+    #define SD_CS_PIN      10
+    
+#elif defined(PICO_BOARD) && (PICO_BOARD == pico2 || PICO_BOARD == pico2_w)
+    // Raspberry Pi Pico 2 / Pico 2 W pinout
+    #define BOARD_NAME "Raspberry Pi Pico 2"
+    
+    // Display configuration
+    #define DISPLAY_WIDTH 480
+    #define DISPLAY_HEIGHT 320
+    #define DISPLAY_TYPE_SELECTED 0  // DISPLAY_TYPE_ST7796
+    
+    // Touch configuration
+    #define TOUCH_TYPE_SELECTED 0  // TOUCH_TYPE_FT6336U
+    #define TOUCH_SWAP_XY true
+    #define TOUCH_INVERT_X true
+    #define TOUCH_INVERT_Y false
+    
+    // SPI pins for display (using SPI0)
+    #define DISPLAY_SPI_PORT spi0
+    #define DISPLAY_SCK_PIN  2   // GP2
+    #define DISPLAY_MOSI_PIN 3   // GP3
+    #define DISPLAY_MISO_PIN 4   // GP4
+    #define DISPLAY_CS_PIN   5   // GP5
+    #define DISPLAY_DC_PIN   6   // GP6
+    #define DISPLAY_RST_PIN  7   // GP7
+    #define DISPLAY_BL_PIN   8   // GP8
+    #define DISPLAY_BUSY_PIN 9   // GP9 - For e-paper displays
+    
+    // I2C pins for touch (using I2C0)
+    #define TOUCH_I2C_PORT i2c0
+    #define TOUCH_SDA_PIN  12  // GP12
+    #define TOUCH_SCL_PIN  13  // GP13
+    #define TOUCH_INT_PIN  14  // GP14
+    #define TOUCH_RST_PIN  15  // GP15
+    
+    // SD card pins (separate SPI1)
+    #define SD_SPI_PORT    spi1
+    #define SD_CS_PIN      17  // GP17
+    
+#else
+    #warning "Unknown board! Using default Pico 2 pinout"
+    #define BOARD_NAME "Unknown Board (Pico 2 defaults)"
+    
+    // Display configuration
+    #define DISPLAY_WIDTH 480
+    #define DISPLAY_HEIGHT 320
+    #define DISPLAY_TYPE_SELECTED 0  // DISPLAY_TYPE_ST7796
+    
+    // Touch configuration
+    #define TOUCH_TYPE_SELECTED 0  // TOUCH_TYPE_FT6336U
+    #define TOUCH_SWAP_XY true
+    #define TOUCH_INVERT_X true
+    #define TOUCH_INVERT_Y false
+    
+    // Default to Pico 2 pinout
+    #define DISPLAY_SPI_PORT spi0
+    #define DISPLAY_SCK_PIN  2
+    #define DISPLAY_MOSI_PIN 3
+    #define DISPLAY_MISO_PIN 4
+    #define DISPLAY_CS_PIN   5
+    #define DISPLAY_DC_PIN   6
+    #define DISPLAY_RST_PIN  7
+    #define DISPLAY_BL_PIN   8
+    #define DISPLAY_BUSY_PIN 9   // For e-paper displays
+    
+    #define TOUCH_I2C_PORT i2c0
+    #define TOUCH_SDA_PIN  12
+    #define TOUCH_SCL_PIN  13
+    #define TOUCH_INT_PIN  14
+    #define TOUCH_RST_PIN  15
+    
+    #define SD_SPI_PORT    spi1
+    #define SD_CS_PIN      17
+#endif
+
+// Common configuration
+#define SPI_BAUDRATE (32 * 1000 * 1000)  // 32 MHz for display
+#define I2C_BAUDRATE (400 * 1000)        // 400 kHz for touch
+
+#endif // BOARD_CONFIG_H

diskio_sdcard.c

@@ -2,8 +2,8 @@
 /* Low level disk I/O module for FatFs with SD card support             */
 /*-----------------------------------------------------------------------*/
 
-#include "fatfs/source/ff.h"
+#include "ff.h"
-#include "fatfs/source/diskio.h"
+#include "diskio.h"
 #include "sd_card.h"
 #include <string.h>
 

display/low_level_display.h

@@ -0,0 +1,42 @@
+#ifndef LOW_LEVEL_DISPLAY_H
+#define LOW_LEVEL_DISPLAY_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+// Display type enumeration
+typedef enum {
+    DISPLAY_TYPE_ST7796,
+    DISPLAY_TYPE_ST7789,
+    DISPLAY_TYPE_EPAPER
+} DisplayType;
+
+// Abstract display interface
+class LowLevelDisplay {
+public:
+    virtual ~LowLevelDisplay() {}
+    
+    // Core display operations - all work with 1-bit monochrome buffers
+    virtual bool init() = 0;
+    virtual void clear(bool white = true) = 0;  // Clear to white or black
+    virtual void draw_pixel(int x, int y, bool white) = 0;
+    virtual void draw_buffer(const uint8_t* bit_buffer) = 0;  // 1-bit buffer (width*height/8 bytes)
+    virtual void refresh() = 0;  // Update display (converts 1-bit to native format)
+    
+    // Display properties
+    virtual int get_width() const = 0;
+    virtual int get_height() const = 0;
+    virtual DisplayType get_type() const = 0;
+    virtual bool is_color() const = 0;
+    
+    // Optional: Backlight control (if supported)
+    virtual void set_backlight(bool on) { (void)on; }
+    
+    // Optional: Orientation control (not commonly needed for bitmap displays)
+    virtual void set_rotation(uint8_t rotation) { (void)rotation; }
+    
+    // Factory method - creates display based on type, using board_config.h for pins
+    static LowLevelDisplay* create(DisplayType type, int width, int height);
+};
+
+#endif // LOW_LEVEL_DISPLAY_H

display/low_level_display_epaper.cpp

@@ -0,0 +1,97 @@
+#include "low_level_display_epaper.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// Note: This is a placeholder implementation
+// You'll need to add the actual e-paper driver code to lib/epaper/
+
+LowLevelDisplayEPaper::LowLevelDisplayEPaper(const epaper_config* cfg, int w, int h)
+    : config(cfg), width(w), height(h), initialized(false), framebuffer(nullptr), dirty(false) {
+    
+    // Allocate framebuffer (1 bit per pixel for monochrome e-paper)
+    int buffer_size = (width * height + 7) / 8;  // Round up to nearest byte
+    framebuffer = (uint8_t*)malloc(buffer_size);
+    if (framebuffer) {
+        memset(framebuffer, 0xFF, buffer_size);  // White
+    }
+}
+
+LowLevelDisplayEPaper::~LowLevelDisplayEPaper() {
+    if (framebuffer) {
+        free(framebuffer);
+    }
+}
+
+bool LowLevelDisplayEPaper::init() {
+    if (initialized) {
+        return true;
+    }
+    
+    if (!framebuffer) {
+        printf("Failed to allocate framebuffer for e-paper display\n");
+        return false;
+    }
+    
+    // TODO: Implement e-paper initialization
+    // epaper_init(config, width, height);
+    printf("E-paper display initialized: %dx%d (stub)\n", width, height);
+    initialized = true;
+    return false;  // Return false until actual driver is implemented
+}
+
+void LowLevelDisplayEPaper::clear(bool white) {
+    if (!framebuffer) return;
+    
+    int buffer_size = (width * height + 7) / 8;
+    memset(framebuffer, white ? 0xFF : 0x00, buffer_size);
+    dirty = true;
+}
+
+void LowLevelDisplayEPaper::draw_pixel(int x, int y, bool white) {
+    if (!framebuffer || x < 0 || x >= width || y < 0 || y >= height) {
+        return;
+    }
+    
+    int byte_index = (y * width + x) / 8;
+    int bit_index = 7 - ((y * width + x) % 8);
+    
+    if (white) {
+        framebuffer[byte_index] |= (1 << bit_index);
+    } else {
+        framebuffer[byte_index] &= ~(1 << bit_index);
+    }
+    
+    dirty = true;
+}
+
+void LowLevelDisplayEPaper::draw_buffer(const uint8_t* bit_buffer) {
+    if (!bit_buffer || !framebuffer) return;
+    
+    // Direct copy of 1-bit buffer
+    int buffer_size = (width * height + 7) / 8;
+    memcpy(framebuffer, bit_buffer, buffer_size);
+    dirty = true;
+}
+
+void LowLevelDisplayEPaper::refresh() {
+    if (!dirty || !framebuffer) {
+        return;
+    }
+    
+    // TODO: Implement actual e-paper refresh
+    // epaper_update(framebuffer);
+    printf("E-paper refresh (stub)\n");
+    
+    dirty = false;
+}
+
+void LowLevelDisplayEPaper::clear_display() {
+    clear(true);  // Fill with white
+    refresh();
+}
+
+void LowLevelDisplayEPaper::sleep() {
+    // TODO: Implement e-paper sleep mode
+    // epaper_sleep();
+}

display/low_level_display_epaper.h

@@ -0,0 +1,48 @@
+#ifndef LOW_LEVEL_DISPLAY_EPAPER_H
+#define LOW_LEVEL_DISPLAY_EPAPER_H
+
+#include "low_level_display.h"
+
+// E-paper display configuration structure
+struct epaper_config {
+    void* spi;           // SPI instance
+    int gpio_din;        // MOSI pin
+    int gpio_clk;        // Clock pin
+    int gpio_cs;         // Chip select pin
+    int gpio_dc;         // Data/Command pin
+    int gpio_rst;        // Reset pin
+    int gpio_busy;       // Busy pin
+};
+
+class LowLevelDisplayEPaper : public LowLevelDisplay {
+private:
+    const epaper_config* config;
+    int width;
+    int height;
+    bool initialized;
+    uint8_t* framebuffer;  // E-paper needs a framebuffer
+    bool dirty;            // Track if display needs refresh
+    
+public:
+    LowLevelDisplayEPaper(const epaper_config* cfg, int w, int h);
+    ~LowLevelDisplayEPaper() override;
+    
+    // Core display operations - native 1-bit monochrome
+    bool init() override;
+    void clear(bool white = true) override;
+    void draw_pixel(int x, int y, bool white) override;
+    void draw_buffer(const uint8_t* bit_buffer) override;
+    void refresh() override;  // Actually update the e-paper display
+    
+    // Display properties
+    int get_width() const override { return width; }
+    int get_height() const override { return height; }
+    DisplayType get_type() const override { return DISPLAY_TYPE_EPAPER; }
+    bool is_color() const override { return false; }  // Most e-paper is monochrome
+    
+    // E-paper specific
+    void clear_display();
+    void sleep();  // Put display in low power mode
+};
+
+#endif // LOW_LEVEL_DISPLAY_EPAPER_H

display/low_level_display_factory.cpp

@@ -0,0 +1,62 @@
+#include "low_level_display.h"
+#include "board_config.h"
+#include <stdio.h>
+
+// Include display implementations based on what's available
+#include "low_level_display_st7796.h"
+#include "low_level_display_st7789.h"
+#include "low_level_display_epaper.h"
+
+// Factory method - creates display with board-specific configuration
+LowLevelDisplay* LowLevelDisplay::create(DisplayType type, int width, int height) {
+    switch (type) {
+        case DISPLAY_TYPE_ST7796: {
+            // Create ST7796 configuration from board_config.h
+            static const st7796_config lcd_config = {
+                .spi      = DISPLAY_SPI_PORT,
+                .gpio_din = DISPLAY_MOSI_PIN,
+                .gpio_clk = DISPLAY_SCK_PIN,
+                .gpio_cs  = DISPLAY_CS_PIN,
+                .gpio_dc  = DISPLAY_DC_PIN,
+                .gpio_rst = DISPLAY_RST_PIN,
+                .gpio_bl  = DISPLAY_BL_PIN,
+            };
+            printf("Creating ST7796 display (%dx%d)\n", width, height);
+            return new LowLevelDisplayST7796(&lcd_config, width, height);
+        }
+        
+        case DISPLAY_TYPE_ST7789: {
+            // Create ST7789 configuration from board_config.h
+            static const st7789_config st7789_cfg = {
+                .spi      = DISPLAY_SPI_PORT,
+                .gpio_din = DISPLAY_MOSI_PIN,
+                .gpio_clk = DISPLAY_SCK_PIN,
+                .gpio_cs  = DISPLAY_CS_PIN,
+                .gpio_dc  = DISPLAY_DC_PIN,
+                .gpio_rst = DISPLAY_RST_PIN,
+                .gpio_bl  = DISPLAY_BL_PIN,
+            };
+            printf("Creating ST7789 display (%dx%d) - STUB (driver not implemented)\n", width, height);
+            return new LowLevelDisplayST7789(&st7789_cfg, width, height);
+        }
+        
+        case DISPLAY_TYPE_EPAPER: {
+            // Create E-Paper configuration from board_config.h
+            static const epaper_config epaper_cfg = {
+                .spi       = DISPLAY_SPI_PORT,
+                .gpio_din  = DISPLAY_MOSI_PIN,
+                .gpio_clk  = DISPLAY_SCK_PIN,
+                .gpio_cs   = DISPLAY_CS_PIN,
+                .gpio_dc   = DISPLAY_DC_PIN,
+                .gpio_rst  = DISPLAY_RST_PIN,
+                .gpio_busy = DISPLAY_BUSY_PIN,
+            };
+            printf("Creating E-Paper display (%dx%d) - STUB (driver not implemented)\n", width, height);
+            return new LowLevelDisplayEPaper(&epaper_cfg, width, height);
+        }
+        
+        default:
+            printf("Error: Unknown display type %d\n", type);
+            return nullptr;
+    }
+}

display/low_level_display_st7789.cpp

@@ -0,0 +1,54 @@
+#include "low_level_display_st7789.h"
+#include <stdio.h>
+
+// Note: This is a placeholder implementation
+// You'll need to add the actual ST7789 driver code to lib/st7789/
+
+LowLevelDisplayST7789::LowLevelDisplayST7789(const st7789_config* cfg, int w, int h)
+    : config(cfg), width(w), height(h), initialized(false) {
+}
+
+LowLevelDisplayST7789::~LowLevelDisplayST7789() {
+    // Cleanup if needed
+}
+
+bool LowLevelDisplayST7789::init() {
+    if (initialized) {
+        return true;
+    }
+    
+    // TODO: Implement ST7789 initialization
+    // st7789_init(config, width, height);
+    printf("ST7789 display initialized: %dx%d (stub)\n", width, height);
+    initialized = true;
+    return false;  // Return false until actual driver is implemented
+}
+
+void LowLevelDisplayST7789::clear(bool white) {
+    // TODO: Implement
+    (void)white;
+}
+
+void LowLevelDisplayST7789::draw_pixel(int x, int y, bool white) {
+    // TODO: Implement
+    (void)x; (void)y; (void)white;
+}
+
+void LowLevelDisplayST7789::draw_buffer(const uint8_t* bit_buffer) {
+    // TODO: Implement - convert 1-bit to RGB565 and write
+    (void)bit_buffer;
+}
+
+void LowLevelDisplayST7789::refresh() {
+    // ST7789 updates immediately
+}
+
+void LowLevelDisplayST7789::set_backlight(bool on) {
+    // TODO: Implement
+    (void)on;
+}
+
+void LowLevelDisplayST7789::set_rotation(uint8_t rotation) {
+    // TODO: Implement
+    (void)rotation;
+}

display/low_level_display_st7789.h

@@ -0,0 +1,48 @@
+#ifndef LOW_LEVEL_DISPLAY_ST7789_H
+#define LOW_LEVEL_DISPLAY_ST7789_H
+
+#include "low_level_display.h"
+
+// ST7789 configuration structure (similar to ST7796)
+struct st7789_config {
+    void* spi;           // SPI instance
+    int gpio_din;        // MOSI pin
+    int gpio_clk;        // Clock pin
+    int gpio_cs;         // Chip select pin
+    int gpio_dc;         // Data/Command pin
+    int gpio_rst;        // Reset pin
+    int gpio_bl;         // Backlight pin
+};
+
+class LowLevelDisplayST7789 : public LowLevelDisplay {
+private:
+    const st7789_config* config;
+    int width;
+    int height;
+    bool initialized;
+    
+public:
+    LowLevelDisplayST7789(const st7789_config* cfg, int w, int h);
+    ~LowLevelDisplayST7789() override;
+    
+    // Core display operations - converts 1-bit to RGB565 internally
+    bool init() override;
+    void clear(bool white = true) override;
+    void draw_pixel(int x, int y, bool white) override;
+    void draw_buffer(const uint8_t* bit_buffer) override;
+    void refresh() override;
+    
+    // Display properties
+    int get_width() const override { return width; }
+    int get_height() const override { return height; }
+    DisplayType get_type() const override { return DISPLAY_TYPE_ST7789; }
+    bool is_color() const override { return true; }
+    
+    // Backlight control
+    void set_backlight(bool on) override;
+    
+    // Orientation control
+    void set_rotation(uint8_t rotation) override;
+};
+
+#endif // LOW_LEVEL_DISPLAY_ST7789_H

display/low_level_display_st7796.cpp

@@ -0,0 +1,77 @@
+#include "low_level_display_st7796.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+// RGB565 color definitions
+#define COLOR_BLACK   0x0000
+#define COLOR_WHITE   0xFFFF
+
+LowLevelDisplayST7796::LowLevelDisplayST7796(const st7796_config* cfg, int w, int h)
+    : config(cfg), width(w), height(h), initialized(false) {
+}
+
+LowLevelDisplayST7796::~LowLevelDisplayST7796() {
+    // Cleanup if needed
+}
+
+bool LowLevelDisplayST7796::init() {
+    if (initialized) {
+        return true;
+    }
+    
+    st7796_init(config, width, height);
+    initialized = true;
+    printf("ST7796 display initialized: %dx%d\n", width, height);
+    return true;
+}
+
+void LowLevelDisplayST7796::clear(bool white) {
+    st7796_fill(white ? COLOR_WHITE : COLOR_BLACK);
+}
+
+void LowLevelDisplayST7796::draw_pixel(int x, int y, bool white) {
+    st7796_draw_pixel(x, y, white ? COLOR_WHITE : COLOR_BLACK);
+}
+
+void LowLevelDisplayST7796::draw_buffer(const uint8_t* bit_buffer) {
+    if (!bit_buffer) return;
+    
+    // Allocate RGB565 buffer for entire screen
+    uint16_t *rgb_buffer = (uint16_t *)malloc(width * height * sizeof(uint16_t));
+    if (!rgb_buffer) {
+        printf("Error: Failed to allocate RGB buffer\n");
+        return;
+    }
+    
+    // Convert 1-bit buffer to RGB565
+    for (int y = 0; y < height; y++) {
+        for (int x = 0; x < width; x++) {
+            int byte_index = (y * width + x) / 8;
+            int bit_index = 7 - (x % 8);
+            bool pixel_white = (bit_buffer[byte_index] >> bit_index) & 0x01;
+            rgb_buffer[y * width + x] = pixel_white ? COLOR_WHITE : COLOR_BLACK;
+        }
+    }
+    
+    // Draw entire buffer at once
+    st7796_set_cursor(0, 0);
+    st7796_write(rgb_buffer, width * height);
+    
+    free(rgb_buffer);
+}
+
+void LowLevelDisplayST7796::refresh() {
+    // ST7796 updates immediately, no refresh needed
+}
+
+void LowLevelDisplayST7796::set_backlight(bool on) {
+    // ST7796 driver doesn't have backlight control yet
+    // TODO: Add GPIO control for backlight pin
+    (void)on;
+}
+
+void LowLevelDisplayST7796::set_rotation(uint8_t rotation) {
+    // ST7796 driver doesn't have rotation control yet
+    // TODO: Add MADCTL register manipulation for rotation
+    (void)rotation;
+}

display/low_level_display_st7796.h

@@ -0,0 +1,38 @@
+#ifndef LOW_LEVEL_DISPLAY_ST7796_H
+#define LOW_LEVEL_DISPLAY_ST7796_H
+
+#include "low_level_display.h"
+#include "st7796.h"
+
+class LowLevelDisplayST7796 : public LowLevelDisplay {
+private:
+    const st7796_config* config;
+    int width;
+    int height;
+    bool initialized;
+    
+public:
+    LowLevelDisplayST7796(const st7796_config* cfg, int w, int h);
+    ~LowLevelDisplayST7796() override;
+    
+    // Core display operations - converts 1-bit to RGB565 internally
+    bool init() override;
+    void clear(bool white = true) override;
+    void draw_pixel(int x, int y, bool white) override;
+    void draw_buffer(const uint8_t* bit_buffer) override;
+    void refresh() override;
+    
+    // Display properties
+    int get_width() const override { return width; }
+    int get_height() const override { return height; }
+    DisplayType get_type() const override { return DISPLAY_TYPE_ST7796; }
+    bool is_color() const override { return true; }
+    
+    // Backlight control
+    void set_backlight(bool on) override;
+    
+    // Orientation control
+    void set_rotation(uint8_t rotation) override;
+};
+
+#endif // LOW_LEVEL_DISPLAY_ST7796_H

display/low_level_touch.h

@@ -0,0 +1,83 @@
+#ifndef LOW_LEVEL_TOUCH_H
+#define LOW_LEVEL_TOUCH_H
+
+#include <cstdint>
+#include <stdbool.h>
+
+using std::int16_t;
+using std::uint8_t;
+using std::uint32_t;
+
+// Touch driver type enumeration
+typedef enum {
+    TOUCH_TYPE_FT6336U,
+    TOUCH_TYPE_NONE  // For boards without touch
+} TouchType;
+
+// Maximum touch points (most capacitive touch controllers support 1-5 points)
+#define TOUCH_MAX_POINTS 2
+
+// Touch event types
+typedef enum {
+    TOUCH_EVENT_PRESS_DOWN = 0,
+    TOUCH_EVENT_LIFT_UP = 1,
+    TOUCH_EVENT_CONTACT = 2,
+    TOUCH_EVENT_NO_EVENT = 3
+} TouchEvent;
+
+// Touch point structure
+typedef struct {
+    int16_t x;
+    int16_t y;
+    uint8_t event;
+    uint8_t id;
+    uint8_t pressure;  // Touch pressure/area/weight
+} TouchPoint;
+
+// Touch data structure
+typedef struct {
+    uint8_t touch_count;
+    TouchPoint points[TOUCH_MAX_POINTS];
+    uint8_t gesture;
+} TouchData;
+
+// Abstract touch interface
+class LowLevelTouch {
+public:
+    virtual ~LowLevelTouch() {}
+    
+    // Core touch operations
+    virtual bool init() = 0;
+    virtual bool read_touch(TouchData* data) = 0;
+    virtual bool is_touched() = 0;
+    
+    // Touch properties
+    virtual int get_screen_width() const = 0;
+    virtual int get_screen_height() const = 0;
+    virtual TouchType get_type() const = 0;
+    virtual uint8_t get_max_touch_points() const = 0;
+    
+    // Optional: Device information
+    virtual uint8_t get_chip_id() { return 0xFF; }
+    virtual uint8_t get_firmware_version() { return 0xFF; }
+    
+    // Optional: Coordinate transformation (handled internally by driver)
+    virtual void set_coordinate_transform(bool swap_xy, bool invert_x, bool invert_y) {
+        (void)swap_xy; (void)invert_x; (void)invert_y;
+    }
+    
+    // Optional: Interrupt callback
+    virtual void set_interrupt_callback(void (*callback)(unsigned int gpio, uint32_t events)) {
+        (void)callback;
+    }
+    
+    // Optional: Test/diagnostic
+    virtual bool test_communication() { return false; }
+    
+    // Factory method - creates touch controller based on type and screen dimensions
+    // Uses board_config.h for pin definitions and optional transform parameters
+    static LowLevelTouch* create(TouchType type, int screen_width, int screen_height,
+                                 bool swap_xy = false, bool invert_x = false, bool invert_y = false);
+};
+
+#endif // LOW_LEVEL_TOUCH_H

display/low_level_touch_factory.cpp

@@ -0,0 +1,31 @@
+#include "low_level_touch.h"
+#include "low_level_touch_ft6336u.h"
+#include <cstdio>
+
+LowLevelTouch* LowLevelTouch::create(TouchType type, int screen_width, int screen_height,
+                                     bool swap_xy, bool invert_x, bool invert_y) {
+    LowLevelTouch* touch = nullptr;
+    
+    switch (type) {
+        case TOUCH_TYPE_FT6336U:
+            printf("Creating FT6336U touch controller...\n");
+            touch = new LowLevelTouchFT6336U(screen_width, screen_height, swap_xy, invert_x, invert_y);
+            break;
+            
+        case TOUCH_TYPE_NONE:
+            printf("No touch controller configured\n");
+            return nullptr;
+            
+        default:
+            printf("Unknown touch type: %d\n", type);
+            return nullptr;
+    }
+    
+    if (touch && !touch->init()) {
+        printf("Failed to initialize touch controller\n");
+        delete touch;
+        return nullptr;
+    }
+    
+    return touch;
+}

display/low_level_touch_ft6336u.cpp

@@ -0,0 +1,107 @@
+#include "low_level_touch_ft6336u.h"
+#include "board_config.h"
+#include <cstdio>
+
+LowLevelTouchFT6336U::LowLevelTouchFT6336U(int width, int height, bool swap_xy, 
+                                           bool invert_x, bool invert_y)
+    : screen_width(width)
+    , screen_height(height)
+    , swap_xy(swap_xy)
+    , invert_x(invert_x)
+    , invert_y(invert_y)
+    , initialized(false)
+{
+}
+
+LowLevelTouchFT6336U::~LowLevelTouchFT6336U() {
+    // Cleanup if needed
+}
+
+bool LowLevelTouchFT6336U::init() {
+    if (initialized) {
+        return true;
+    }
+    
+    // Build configuration from board_config.h
+    ft6336u_config_t config = {
+        .i2c = TOUCH_I2C_PORT,
+        .gpio_sda = TOUCH_SDA_PIN,
+        .gpio_scl = TOUCH_SCL_PIN,
+        .gpio_rst = TOUCH_RST_PIN,
+        .gpio_int = TOUCH_INT_PIN,
+        .screen_width = (uint16_t)screen_width,
+        .screen_height = (uint16_t)screen_height,
+        .swap_xy = swap_xy,
+        .invert_x = invert_x,
+        .invert_y = invert_y
+    };
+    
+    initialized = ft6336u_init(&config);
+    
+    if (initialized) {
+        printf("Touch FT6336U initialized: Chip ID=0x%02X, FW Ver=0x%02X\n", 
+               get_chip_id(), get_firmware_version());
+    } else {
+        printf("Touch FT6336U initialization failed!\n");
+    }
+    
+    return initialized;
+}
+
+bool LowLevelTouchFT6336U::read_touch(TouchData* data) {
+    if (!initialized || !data) {
+        return false;
+    }
+    
+    ft6336u_touch_data_t ft_data;
+    if (!ft6336u_read_touch(&ft_data)) {
+        return false;
+    }
+    
+    // Convert from FT6336U format to our abstract format
+    data->touch_count = ft_data.touch_count;
+    data->gesture = ft_data.gesture;
+    
+    for (int i = 0; i < ft_data.touch_count && i < TOUCH_MAX_POINTS; i++) {
+        data->points[i].x = ft_data.points[i].x;
+        data->points[i].y = ft_data.points[i].y;
+        data->points[i].event = ft_data.points[i].event;
+        data->points[i].id = ft_data.points[i].id;
+        data->points[i].pressure = ft_data.points[i].weight;
+    }
+    
+    return true;
+}
+
+bool LowLevelTouchFT6336U::is_touched() {
+    if (!initialized) {
+        return false;
+    }
+    return ft6336u_is_touched();
+}
+
+uint8_t LowLevelTouchFT6336U::get_chip_id() {
+    return ft6336u_get_chip_id();
+}
+
+uint8_t LowLevelTouchFT6336U::get_firmware_version() {
+    return ft6336u_get_firmware_version();
+}
+
+void LowLevelTouchFT6336U::set_coordinate_transform(bool swap_xy, bool invert_x, bool invert_y) {
+    this->swap_xy = swap_xy;
+    this->invert_x = invert_x;
+    this->invert_y = invert_y;
+    
+    // Note: This only updates internal state. To apply to the driver,
+    // you would need to reinitialize with the new settings.
+    printf("Touch coordinate transform updated (requires re-init to apply)\n");
+}
+
+void LowLevelTouchFT6336U::set_interrupt_callback(void (*callback)(unsigned int gpio, uint32_t events)) {
+    ft6336u_set_interrupt_callback(callback);
+}
+
+bool LowLevelTouchFT6336U::test_communication() {
+    return ft6336u_test_i2c();
+}

display/low_level_touch_ft6336u.h

@@ -0,0 +1,47 @@
+#ifndef LOW_LEVEL_TOUCH_FT6336U_H
+#define LOW_LEVEL_TOUCH_FT6336U_H
+
+#include "low_level_touch.h"
+#include "../lib/ft6336u/ft6336u.h"
+
+// FT6336U Touch Driver Implementation
+class LowLevelTouchFT6336U : public LowLevelTouch {
+private:
+    int screen_width;
+    int screen_height;
+    bool swap_xy;
+    bool invert_x;
+    bool invert_y;
+    bool initialized;
+
+public:
+    LowLevelTouchFT6336U(int width, int height, bool swap_xy = false, 
+                         bool invert_x = false, bool invert_y = false);
+    virtual ~LowLevelTouchFT6336U();
+    
+    // Core operations
+    bool init() override;
+    bool read_touch(TouchData* data) override;
+    bool is_touched() override;
+    
+    // Touch properties
+    int get_screen_width() const override { return screen_width; }
+    int get_screen_height() const override { return screen_height; }
+    TouchType get_type() const override { return TOUCH_TYPE_FT6336U; }
+    uint8_t get_max_touch_points() const override { return 2; }
+    
+    // Device information
+    uint8_t get_chip_id() override;
+    uint8_t get_firmware_version() override;
+    
+    // Coordinate transformation
+    void set_coordinate_transform(bool swap_xy, bool invert_x, bool invert_y) override;
+    
+    // Interrupt callback
+    void set_interrupt_callback(void (*callback)(unsigned int gpio, uint32_t events)) override;
+    
+    // Test/diagnostic
+    bool test_communication() override;
+};
+
+#endif // LOW_LEVEL_TOUCH_FT6336U_H

fatfs_time.c

@@ -4,19 +4,45 @@
 
 #include "ff.h"
 #include "pico/stdlib.h"
+#include <string.h>
+
+// Parse compilation date/time macros
+static int get_month_from_string(const char* month_str) {
+    const char* months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+                           "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+    for (int i = 0; i < 12; i++) {
+        if (strncmp(month_str, months[i], 3) == 0) {
+            return i + 1;
+        }
+    }
+    return 1; // Default to January
+}
 
 /* Get current time */
 DWORD get_fattime (void)
 {
-    // Return a fixed timestamp (2024-01-01 00:00:00)
+    // Use compilation date/time from __DATE__ and __TIME__ macros
-    // In a real application, you would get this from an RTC
+    // __DATE__ format: "Jan 28 2026"
+    // __TIME__ format: "HH:MM:SS"
     // Format: bit31:25=Year(0-127 +1980), bit24:21=Month(1-12), bit20:16=Day(1-31)
     //         bit15:11=Hour(0-23), bit10:5=Minute(0-59), bit4:0=Second/2(0-29)
     
-    return ((DWORD)(2024 - 1980) << 25)  // Year: 2024
+    // Parse __DATE__ (e.g., "Jan 28 2026")
-         | ((DWORD)1 << 21)              // Month: January
+    char month_str[4] = {__DATE__[0], __DATE__[1], __DATE__[2], 0};
-         | ((DWORD)1 << 16)              // Day: 1
+    int day = (__DATE__[4] == ' ' ? 0 : (__DATE__[4] - '0') * 10) + (__DATE__[5] - '0');
-         | ((DWORD)0 << 11)              // Hour: 0
+    int year = ((__DATE__[7] - '0') * 1000) + ((__DATE__[8] - '0') * 100) +
-         | ((DWORD)0 << 5)               // Minute: 0
+               ((__DATE__[9] - '0') * 10) + (__DATE__[10] - '0');
-         | ((DWORD)0 >> 1);              // Second: 0
+    int month = get_month_from_string(month_str);
+    
+    // Parse __TIME__ (e.g., "12:34:56")
+    int hour = ((__TIME__[0] - '0') * 10) + (__TIME__[1] - '0');
+    int minute = ((__TIME__[3] - '0') * 10) + (__TIME__[4] - '0');
+    int second = ((__TIME__[6] - '0') * 10) + (__TIME__[7] - '0');
+    
+    return ((DWORD)(year - 1980) << 25)
+         | ((DWORD)month << 21)
+         | ((DWORD)day << 16)
+         | ((DWORD)hour << 11)
+         | ((DWORD)minute << 5)
+         | ((DWORD)(second / 2));
 }

lib/Pico_ePaper_Code/.gitignore

@@ -0,0 +1 @@
+build/

lib/Pico_ePaper_Code/LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

lib/Pico_ePaper_Code/README.md

@@ -0,0 +1,15 @@
+# Pico_ePaper_Code
+## waveshare electronics
+![waveshare_logo.png](waveshare_logo.png)
+
+## 中文：
+微雪电子 Pico-ePaper 系列驱动代码，支持C和Python
+
+更多资料请在官网搜索相关产品：
+> https://www.waveshare.net or https://www.waveshare.net/wiki
+***
+## English:
+Waveshrae Pico-ePaper series drivers code, Support C and Python.
+
+For more information, please search on the official website:
+> https://www.waveshare.com or https://www.waveshare.com/wiki/Main_Page

lib/Pico_ePaper_Code/Version_CN.txt

@@ -0,0 +1,16 @@
+2021-02-04：新创建，添加2.13 & 2.9程序
+2021-03-17：新添加2.13-B、2.13-C、2.9-B、2.9-C程序
+2021-05-12：新添加2.66程序，解决python程序自启动乱码的问题
+2021-05-14：新添加2.66-B、2.13-D、2.9-D程序
+2021-05-27：新添加5.83、5.83-B、7.5、7.5-B程序
+2021-06-01：新添加3.7程序
+2021-06-15：新添加2.7程序
+2021-07-13：新添加4.2、4.2-B、5.65程序
+2021-11-01：添加新程序2.13inch V3 e-Paper例程。
+2022-08-22：添加新程序2.13Binch V4 e-Paper例程。
+2023-03-16：添加新程序2.7inch V2 e-Paper例程。
+2023-08-12：添加新程序2.13inch V4 e-Paper例程。
+2023-08-31：更新 2.9inch V2 e-Paper 的例程，添加四灰度显示
+2023-09-13：添加新程序4.2inch V2 e-Paper例程。
+2024-04-22：添加新程序2.9inch e-Paper (B) V4 例程。
+2024-04-22：更新4.2inch e-Paper (B) V2 例程。

lib/Pico_ePaper_Code/Version_EN.txt

@@ -0,0 +1,16 @@
+2021-02-04: newly built, add 2.13 & 2.9 programs.
+2021-03-17: add 2.13-B & 2.13-C & 2.9-B & 2.9-C programs.
+2021-05-12: add 2.66 program, Solve the Python program to start the problem of garbled code
+2021-05-14: add 2.66-B & 2.13-D & 2.9-D programs.
+2021-05-27：add 5.83 & 5.83-B & 7.5 & 7.5-B programs.
+2021-06-01：add 3.7 programs.
+2021-06-15：add 2.7 programs.
+2021-07-13：add 4.2 & 4.2-B & 5.65 programs.
+2021-11-01: Added new program 2.13inch V3 e-Paper routine.
+2022-08-22: Added new program 2.13Binch V4 e-Paper routine.
+2023-03-16: Added new program 2.7inch V2 e-Paper routine.
+2023-08-12: Added new program 2.13inch V4 e-Paper routine.
+2023-08-31: Update the routines of the 2.9inch V2 e-Paper to add a four-grayscale display
+2023-09-13: Added new program 4.2inch V2 e-Paper routine.
+2024-04-22: Added new program 2.9inch e-Paper (B) V4 routine added.
+2024-04-22: Update 4.2inch e-Paper (B) V2 routine.

lib/Pico_ePaper_Code/c/CMakeLists.txt

@@ -0,0 +1,30 @@
+cmake_minimum_required(VERSION 3.12)
+include(pico_sdk_import.cmake)
+project(Pico_ePaper_Code)
+pico_sdk_init()
+
+# add a compilation subdirectory
+add_subdirectory(lib/Config)
+add_subdirectory(lib/e-Paper)
+add_subdirectory(lib/Fonts)
+add_subdirectory(lib/GUI)
+add_subdirectory(examples)
+
+# add a header directory
+include_directories(examples)
+include_directories(./lib/Config)
+include_directories(./lib/GUI)
+
+# generate an executable file
+add_executable(epd 
+main.c
+)
+
+# enable usb output, disable uart output
+pico_enable_stdio_usb(epd 1)
+pico_enable_stdio_uart(epd 0)
+
+# create map/bin/hex/uf2 file etc.
+pico_add_extra_outputs(epd)
+
+target_link_libraries(epd examples ePaper GUI Fonts Config pico_stdlib hardware_spi)

lib/Pico_ePaper_Code/c/ReadmeCN.txt

@@ -0,0 +1,88 @@
+/*****************************************************************************
+* | File      	:   Readme_CN.txt
+* | Author      :   Waveshare team
+* | Function    :   Help with use
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2021-02-04
+* | Info        :   在这里提供一个中文版本的使用文档，以便你的快速使用
+******************************************************************************/
+这个文件是帮助您使用本例程。
+由于我们的墨水屏越来越多，不便于我们的维护，因此把所有的墨水屏程序做成一个工程。
+在这里简略的描述本工程的使用：
+
+1.基本信息：
+本例程使用相对应的模块搭配Pico进行了验证，你可以在工程的examples\中查看对应的测试例程;
+
+2.管脚连接：
+管脚连接你可以在\lib\Config目录下查看DEV_Config.c/h中查看，这里也再重述一次：
+EPD    =>    Pico
+VCC    ->    VSYS
+GND    ->    GND
+DIN    ->    11
+CLK    ->    10
+CS     ->    9
+DC     ->    8
+RST    ->    12
+BUSY   ->    13
+
+3.基本使用：
+由于本工程是一个综合工程，对于使用而言，你可能需要阅读以下内容：
+你可以在main.c中的12行到22行看到已经进行了注释的9个函数，
+请注意你购买的是哪一款的墨水屏。
+栗子1：
+    如果你购买的 Pico-ePaper-2.13，那么你应该把对应的18(或19，取决于您屏幕的版本)行代码的注释去掉，即：
+		// EPD_2in13_V2_test();
+    修改成：
+		EPD_2in13_V2_test();
+栗子2：
+    如果你购买的 Pico-ePaper-2.9-B，那么你应该把对应的21行代码的注释去掉，即：
+		// EPD_2in13b_V3_test();
+    修改成：
+		EPD_2in13b_V3_test();
+注意：对于屏幕的版本请注意你的屏幕背面是否贴有V2/V3等标识。
+
+然后你需要执行：
+	创建build目录：打开终端，在 Pico_ePaper_Code/c 目录下输入：
+		mkdir build
+	进入build目录，在终端输入：
+		cd build
+	执行cmake，自动生成Makefile文件，在终端输入：
+		cmake ..
+	执行make，生成可执行文件，在终端输入：
+		make -j4
+
+4.目录结构（选读）：
+如果你经常使用我们的产品，对我们的程序目录结构会十分熟悉，关于具体的函数的我们有一份
+函数的API手册，你可以在我们的WIKI上下载或像售后客服索取，这里简单介绍一次：
+\lib\Config\:此目录为硬件接口层文件，在DEV_Config.c(.h)可以看到很多定义，包括：
+    数据类型;
+    GPIO;
+    读写GPIO;
+    延时：注意：此延时函数并未使用示波器测量具体数值,因此会不准;
+    模块初始化与退出的处理：
+        void DEV_Module_Init(void);
+        void DEV_Module_Exit(void);
+        注意：1.这里是处理使用墨水屏前与使用完之后一些GPIO的处理。
+              2.对于PCB带有Rev2.1的，DEV_Module_Exit()之后整个模块会进入低功耗，经过测试这个功耗基本为0;
+              
+\lib\GUI\:此目录为一些基本的图像处理函数，在GUI_Paint.c(.h)中：
+    常用图像处理：创建图形、翻转图形、镜像图形、设置像素点、清屏等;
+    常用画图处理：画点、线、框、圆、中文字符、英文字符、数字等;
+    常用时间显示：提供一个常用的显示时间函数;
+    常用显示图片：提供一个显示位图的函数;
+    
+\lib\Fonts\:为一些常用的字体：
+    Ascii:
+        font8: 5*8 
+        font12: 7*12
+        font16: 11*16 
+        font20: 14*20 
+        font24: 17*24
+    中文：
+        font12CN: 16*21 
+        font24CN: 32*41
+        
+\lib\e-paper\:此目录下为墨水屏驱动函数;
+examples\:此目录下为墨水屏的测试程序，你可在其中看到具体的使用方法;

lib/Pico_ePaper_Code/c/ReadmeEN.txt

@@ -0,0 +1,91 @@
+/*****************************************************************************
+* | File      	:   Readme_EN.txt
+* | Author      :   Waveshare team
+* | Function    :   Help with use
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2021-02-04
+* | Info        :   Here is an English version of the documentation for your quick use.
+******************************************************************************/
+This file is to help you use this routine.
+Since our ink screens are getting more and more, it is not convenient for our maintenance, so all the ink screen programs are made into one project.
+A brief description of the use of this project is here:
+
+1. Basic information:
+This routine is verified using the corresponding module with the PICO. 
+You can see the corresponding test routine in the examples\ of the project.
+
+2. Pin connection:
+Pin connection You can look at dev_config.c/h in \lib\Config. Again, here:
+EPD    =>    Pico
+VCC    ->    VSYS
+GND    ->    GND
+DIN    ->    11
+CLK    ->    10
+CS     ->    9
+DC     ->    8
+RST    ->    12
+BUSY   ->    13
+
+3. Basic use:
+As this project is a comprehensive project, for use, you may need to read the following:
+You can see the nine functions that have been commented in main.c on lines 12 through 22,
+Please pay attention to which type of ink screen you buy.
+eg.1：
+    If you purchased pico-epaper 2.13, 
+	then you should uncomment the corresponding 18(or 19, depending on the version of your screen) lines of code, i.e. :
+		// EPD_2in13_V2_test();
+    change to：
+		EPD_2in13_V2_test();
+eg.2：
+    If you bought pico-epaper 2.9-b, 
+	then you should uncomment the corresponding 21 lines of code, i.e. :
+		// EPD_2in13b_V3_test();
+    change to：
+		EPD_2in13b_V3_test();
+Note: For the version of the screen, please pay attention to whether the back of your screen is labeled with V2/V3 etc.
+
+Then you need to implement:
+	Create the build directory: Open the terminal and type in the Pico_ePaper_Code/c directory:
+		mkdir build
+	Go to the build directory and type:
+		cd build
+	Execute cmake to automatically generate the Makefile file and type:
+		cmake ..
+	To create an executable file, type:
+		make -j4
+
+4. Directory structure (selection):
+If you use our products frequently, we will be very familiar with our program directory structure. We have a copy of the specific function.
+The API manual for the function, you can download it on our WIKI or request it as an after-sales customer service. Here is a brief introduction:
+Config\: This directory is a hardware interface layer file. You can see many definitions in DEV_Config.c(.h), including:
+   type of data;
+    GPIO;
+    Read and write GPIO;
+    Delay: Note: This delay function does not use an oscilloscope to measure specific values.
+    Module Init and exit processing:
+        void DEV_Module_Init(void);
+        void DEV_Module_Exit(void);
+        Note: 1. Here is the processing of some GPIOs before and after using the ink screen.
+              2. For the PCB with Rev2.1, the entire module will enter low power consumption after DEV_Module_Exit(). After testing, the power consumption is basically 0;
+             
+\lib\GUI\: This directory is some basic image processing functions, in GUI_Paint.c(.h):
+    Common image processing: creating graphics, flipping graphics, mirroring graphics, setting pixels, clearing screens, etc.
+    Common drawing processing: drawing points, lines, boxes, circles, Chinese characters, English characters, numbers, etc.;
+    Common time display: Provide a common display time function;
+    Commonly used display pictures: provide a function to display bitmaps;
+    
+\lib\Fonts\: for some commonly used fonts:
+    Ascii:
+        Font8: 5*8
+        Font12: 7*12
+        Font16: 11*16
+        Font20: 14*20
+        Font24: 17*24
+    Chinese:
+        font12CN: 16*21
+        font24CN: 32*41
+        
+\lib\e-paper\: This screen is the ink screen driver function;
+examples\: This is the test program for the ink screen. You can see the specific usage method in it.

lib/Pico_ePaper_Code/c/examples/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Find all source files in a single current directory
+# Save the name to DIR_examples_SRCS
+aux_source_directory(. DIR_examples_SRCS)
+
+include_directories(../lib/Config)
+include_directories(../lib/GUI)
+include_directories(../lib/e-Paper)
+
+# Generate the link library
+add_library(examples ${DIR_examples_SRCS})
+target_link_libraries(examples PUBLIC Config)

lib/Pico_ePaper_Code/c/examples/EPD_2in13_V2_test.c

@@ -0,0 +1,196 @@
+/*****************************************************************************
+* | File      	:   EPD_2IN13_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.13inch e-paper(V2) test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-13
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in13_V2.h"
+
+int EPD_2in13_V2_test(void)
+{
+    printf("EPD_2IN13_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN13_V2_Init(EPD_2IN13_V2_FULL);
+    EPD_2IN13_V2_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_2IN13_V2_WIDTH % 8 == 0)? (EPD_2IN13_V2_WIDTH / 8 ): (EPD_2IN13_V2_WIDTH / 8 + 1)) * EPD_2IN13_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN13_V2_WIDTH, EPD_2IN13_V2_HEIGHT, 270, WHITE);
+    Paint_SelectImage(BlackImage);
+    Paint_SetMirroring(MIRROR_HORIZONTAL); //
+    Paint_Clear(WHITE);
+
+#if 1   //show image for array    
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in13);
+
+    EPD_2IN13_V2_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    printf("Drawing\r\n");
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    Paint_DrawPoint(5, 10, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 25, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 40, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 55, BLACK, DOT_PIXEL_4X4, DOT_STYLE_DFT);
+
+    Paint_DrawLine(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 10, 20, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(85, 10, 135, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawLine(45, 15, 45, 55, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(25, 35, 70, 35, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawCircle(45, 35, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(110, 35, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawString_EN(140, 15, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawNum(140, 40, 123456789, &Font16, BLACK, WHITE);
+
+    Paint_DrawString_CN(140, 60, "ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 65, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2IN13_V2_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    printf("Drawing\r\n");
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    Paint_DrawLine(1,	1,	250,1,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(250, 1,	250,122,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(250, 122,1,	122,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(1, 	122,1,	1,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+
+    Paint_DrawLine(3,	3,	248,3,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(248, 3,	248,120,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(248, 120,3,	120,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(3, 	120,3,	3,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+	
+    Paint_DrawLine(5,	5,	246,5,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(246, 5,	246,118,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(246, 118,5,	118,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(5, 	118,5,	5,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+	
+    Paint_DrawLine(7,	7,	244,7,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(244, 7,	244,116,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(244, 116,7,	116,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(7, 	116,7,	7,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+	
+    Paint_DrawLine(9,	9,	242,9,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(242, 9,	242,114,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(242, 114,9,	114,	BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(9, 	114,9,	9,		BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+
+    Paint_DrawString_EN(60, 25, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_CN(60, 55, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2IN13_V2_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   //Partial refresh, example shows time    		
+    printf("Partial refresh\r\n");
+    EPD_2IN13_V2_Init(EPD_2IN13_V2_FULL);
+    EPD_2IN13_V2_DisplayPartBaseImage(BlackImage);
+
+    EPD_2IN13_V2_Init(EPD_2IN13_V2_PART);
+    Paint_SelectImage(BlackImage);
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 20;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(140, 90, 140 + Font20.Width * 7, 90 + Font20.Height, WHITE);
+        Paint_DrawTime(140, 90, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+        EPD_2IN13_V2_DisplayPart(BlackImage);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+
+#endif
+    printf("Clear...\r\n");
+
+    EPD_2IN13_V2_Init(EPD_2IN13_V2_FULL);
+    EPD_2IN13_V2_Clear();
+    DEV_Delay_ms(2000);//Analog clock 1s
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN13_V2_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in13_V3_test.c

@@ -0,0 +1,149 @@
+/*****************************************************************************
+* | File      	:   EPD_2in13_V3_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.13inch e-paper V3 test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-12-22
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in13_V3.h"
+
+int EPD_2in13_V3_test(void)
+{
+    printf("EPD_2in13_V3_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+	EPD_2in13_V3_Init();
+    EPD_2in13_V3_Clear();
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    UWORD Imagesize = ((EPD_2in13_V3_WIDTH % 8 == 0)? (EPD_2in13_V3_WIDTH / 8 ): (EPD_2in13_V3_WIDTH / 8 + 1)) * EPD_2in13_V3_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2in13_V3_WIDTH, EPD_2in13_V3_HEIGHT, 90, WHITE);
+	Paint_Clear(WHITE);
+
+#if 1   //show image for array    
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in13_2);
+
+    EPD_2in13_V3_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1  // Drawing on the image
+	Paint_NewImage(BlackImage, EPD_2in13_V3_WIDTH, EPD_2in13_V3_HEIGHT, 90, WHITE);  	
+    printf("Drawing\r\n");
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+	
+    // 2.Drawing on the image
+    Paint_DrawPoint(5, 10, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 25, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 40, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 55, BLACK, DOT_PIXEL_4X4, DOT_STYLE_DFT);
+
+    Paint_DrawLine(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 10, 20, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(85, 10, 135, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawLine(45, 15, 45, 55, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(25, 35, 70, 35, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawCircle(45, 35, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(110, 35, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawString_EN(140, 15, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawNum(140, 40, 123456789, &Font16, BLACK, WHITE);
+
+    Paint_DrawString_CN(140, 60, "ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 65, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2in13_V3_Display_Base(BlackImage);
+    DEV_Delay_ms(3000);
+#endif
+
+#if 1   //Partial refresh, example shows time    		
+	Paint_NewImage(BlackImage, EPD_2in13_V3_WIDTH, EPD_2in13_V3_HEIGHT, 90, WHITE);  
+    printf("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+	
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, WHITE);
+        Paint_DrawTime(150, 80, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		EPD_2in13_V3_Display_Partial(BlackImage);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+#endif
+
+	printf("Clear...\r\n");
+	EPD_2in13_V3_Init();
+    EPD_2in13_V3_Clear();
+	
+    printf("Goto Sleep...\r\n");
+    EPD_2in13_V3_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in13_V4_test.c

@@ -0,0 +1,152 @@
+/*****************************************************************************
+* | File      	:   EPD_2in13_V4_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.13inch e-paper V4 test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2023-08-12
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in13_V4.h"
+
+int EPD_2in13_V4_test(void)
+{
+
+    Debug("EPD_2in13_V4_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    Debug("e-Paper Init and Clear...\r\n");
+	EPD_2in13_V4_Init();
+    EPD_2in13_V4_Clear();
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    UWORD Imagesize = ((EPD_2in13_V4_WIDTH % 8 == 0)? (EPD_2in13_V4_WIDTH / 8 ): (EPD_2in13_V4_WIDTH / 8 + 1)) * EPD_2in13_V4_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        Debug("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    Debug("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2in13_V4_WIDTH, EPD_2in13_V4_HEIGHT, 90, WHITE);
+	Paint_Clear(WHITE);
+
+#if 1   //show image for array    
+    Debug("show image for array\r\n");
+    EPD_2in13_V4_Init_Fast();
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in13_2);
+
+    EPD_2in13_V4_Display_Fast(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1  // Drawing on the image
+	Paint_NewImage(BlackImage, EPD_2in13_V4_WIDTH, EPD_2in13_V4_HEIGHT, 90, WHITE);  	
+    Debug("Drawing\r\n");
+    //1.Select Image
+    EPD_2in13_V4_Init();
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+	
+    // 2.Drawing on the image
+    Paint_DrawPoint(5, 10, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 25, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 40, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 55, BLACK, DOT_PIXEL_4X4, DOT_STYLE_DFT);
+
+    Paint_DrawLine(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 10, 20, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(85, 10, 135, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawLine(45, 15, 45, 55, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(25, 35, 70, 35, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawCircle(45, 35, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(110, 35, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawString_EN(140, 15, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawNum(140, 40, 123456789, &Font16, BLACK, WHITE);
+
+    Paint_DrawString_CN(140, 60, "ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 65, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2in13_V4_Display_Base(BlackImage);
+    DEV_Delay_ms(3000);
+#endif
+
+#if 1   //Partial refresh, example shows time
+	Paint_NewImage(BlackImage, EPD_2in13_V4_WIDTH, EPD_2in13_V4_HEIGHT, 90, WHITE);  
+    Debug("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+	
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, WHITE);
+        Paint_DrawTime(150, 80, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		EPD_2in13_V4_Display_Partial(BlackImage);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+#endif
+
+	Debug("Clear...\r\n");
+	EPD_2in13_V4_Init();
+    EPD_2in13_V4_Clear();
+	
+    Debug("Goto Sleep...\r\n");
+    EPD_2in13_V4_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    Debug("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in13b_V3_test.c

@@ -0,0 +1,123 @@
+/*****************************************************************************
+* | File      	:   EPD_2in13b_V3_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.13inch B V3 e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-04-13
+* | Info        :
+* -----------------------------------------------------------------------------
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in13b_V3.h"
+
+int EPD_2in13b_V3_test(void)
+{
+    printf("EPD_2IN13B_V3_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN13B_V3_Init();
+    EPD_2IN13B_V3_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_2IN13B_V3_WIDTH % 8 == 0)? (EPD_2IN13B_V3_WIDTH / 8 ): (EPD_2IN13B_V3_WIDTH / 8 + 1)) * EPD_2IN13B_V3_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN13B_V3_WIDTH, EPD_2IN13B_V3_HEIGHT, 270, WHITE);
+    Paint_NewImage(RYImage, EPD_2IN13B_V3_WIDTH, EPD_2IN13B_V3_HEIGHT, 270, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE); 
+    
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+//    EPD_2IN13B_V3_Display(gImage_2in13b_b, gImage_2in13b_r);
+
+    EPD_2IN13B_V3_Display(gImage_2in13c_b, gImage_2in13c_y);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 0   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    printf("Draw black image\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(5, 70, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 80, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 50, 100, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(50, 70, 20, 100, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(60, 70, 90, 100, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(125, 85, 15, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawString_CN(5, 15, "ÄãºÃabc", &Font12CN, WHITE, BLACK);
+
+    //2.Draw red image
+    printf("Draw red image\r\n");
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(5, 90, RED, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 100, RED, DOT_PIXEL_4X4, DOT_STYLE_DFT);
+    Paint_DrawLine(125, 70, 125, 100, RED, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(110, 85, 140, 85, RED, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawRectangle(20, 70, 50, 100, RED, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(165, 85, 15, RED, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(5, 0, "waveshare Electronics", &Font12, BLACK, WHITE);
+    Paint_DrawNum(5, 50, 987654321, &Font16, WHITE, RED);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN13B_V3_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_2IN13B_V3_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN13B_V3_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in13b_V4_test.c

@@ -0,0 +1,122 @@
+/*****************************************************************************
+* | File      	:   EPD_2in13b_V4_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.13inch B V4 e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2022-08-20
+* | Info        :
+* -----------------------------------------------------------------------------
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in13b_V4.h"
+#include "time.h"
+
+int EPD_2in13b_V4_test(void)
+{
+    printf("EPD_2IN13B_V4_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN13B_V4_Init();
+    EPD_2IN13B_V4_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_2IN13B_V4_WIDTH % 8 == 0)? (EPD_2IN13B_V4_WIDTH / 8 ): (EPD_2IN13B_V4_WIDTH / 8 + 1)) * EPD_2IN13B_V4_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN13B_V4_WIDTH, EPD_2IN13B_V4_HEIGHT, 90, WHITE);
+    Paint_NewImage(RYImage, EPD_2IN13B_V4_WIDTH, EPD_2IN13B_V4_HEIGHT, 90, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_2IN13B_V4_Display(gImage_2in13b_V4b, gImage_2in13b_V4r);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    printf("Draw black image\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(5, 70, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 80, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 50, 100, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(50, 70, 20, 100, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(60, 70, 90, 100, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(125, 85, 15, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawString_CN(5, 15, "ÄãºÃabc", &Font12CN, WHITE, BLACK);
+
+    //2.Draw red image
+    printf("Draw red image\r\n");
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(5, 90, RED, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 100, RED, DOT_PIXEL_4X4, DOT_STYLE_DFT);
+    Paint_DrawLine(125, 70, 125, 100, RED, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(110, 85, 140, 85, RED, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawRectangle(20, 70, 50, 100, RED, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(165, 85, 15, RED, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(5, 0, "waveshare Electronics", &Font12, BLACK, WHITE);
+    Paint_DrawNum(5, 50, 987654321, &Font16, WHITE, RED);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN13B_V4_Display(BlackImage, RYImage);
+    DEV_Delay_ms(5000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_2IN13B_V4_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN13B_V4_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in13bc_test.c

@@ -0,0 +1,122 @@
+/*****************************************************************************
+* | File      	:   EPD_2in13bc_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.13inch B&C e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-13
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in13bc.h"
+
+int EPD_2in13bc_test(void)
+{
+    printf("EPD_2IN13BC_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN13BC_Init();
+    EPD_2IN13BC_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_2IN13BC_WIDTH % 8 == 0)? (EPD_2IN13BC_WIDTH / 8 ): (EPD_2IN13BC_WIDTH / 8 + 1)) * EPD_2IN13BC_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN13BC_WIDTH, EPD_2IN13BC_HEIGHT, 270, WHITE);
+    Paint_NewImage(RYImage, EPD_2IN13BC_WIDTH, EPD_2IN13BC_HEIGHT, 270, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE); 
+    
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+//    EPD_2IN13BC_Display(gImage_2in13b_b, gImage_2in13b_r);
+
+    EPD_2IN13BC_Display(gImage_2in13c_b, gImage_2in13c_y);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    printf("Draw black image\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(5, 70, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 80, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 50, 100, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(50, 70, 20, 100, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(60, 70, 90, 100, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(125, 85, 15, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawString_CN(5, 15, "ÄãºÃabc", &Font12CN, WHITE, BLACK);
+
+    //2.Draw red image
+    printf("Draw red image\r\n");
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(5, 90, RED, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 100, RED, DOT_PIXEL_4X4, DOT_STYLE_DFT);
+    Paint_DrawLine(125, 70, 125, 100, RED, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(110, 85, 140, 85, RED, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawRectangle(20, 70, 50, 100, RED, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(165, 85, 15, RED, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(5, 0, "waveshare Electronics", &Font12, BLACK, WHITE);
+    Paint_DrawNum(5, 50, 987654321, &Font16, WHITE, RED);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN13BC_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_2IN13BC_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN13BC_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in13d_test.c

@@ -0,0 +1,147 @@
+/*****************************************************************************
+* | File      	:   EPD_2in13d_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-13
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in13d.h"
+
+int EPD_2in13d_test(void)
+{
+    printf("EPD_2IN13D_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN13D_Init();
+    EPD_2IN13D_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_2IN13D_WIDTH % 8 == 0)? (EPD_2IN13D_WIDTH / 8 ): (EPD_2IN13D_WIDTH / 8 + 1)) * EPD_2IN13D_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN13D_WIDTH, EPD_2IN13D_HEIGHT, 270, WHITE);
+    
+#if 1   //show image for array    
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in13d);
+
+    EPD_2IN13D_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    printf("Drawing\r\n");
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    Paint_DrawString_EN(5, 5, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawNum(5, 25, 123456789, &Font16, BLACK, WHITE);
+    Paint_DrawString_CN(5, 35,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 60,"΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    EPD_2IN13D_Display(BlackImage);
+    DEV_Delay_ms(1000);
+
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(5, 10, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 25, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 40, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(5, 55, BLACK, DOT_PIXEL_4X4, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 10, 20, 60, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(170, 15, 170, 55, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(150, 35, 190, 35, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawRectangle(20, 10, 70, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(85, 10, 130, 60, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(170, 35, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(170, 80, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    EPD_2IN13D_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 0   //Partial refresh, example shows time    		
+    printf("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(15, 65, 15 + Font20.Width * 7, 65 + Font20.Height, WHITE);
+        Paint_DrawTime(15, 65, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+        EPD_2IN13D_DisplayPart(BlackImage);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+#endif
+    printf("Clear...\r\n");
+    EPD_2IN13D_Init();
+    EPD_2IN13D_Clear();
+	
+    printf("Goto Sleep...\r\n");
+    EPD_2IN13D_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in66_test.c

@@ -0,0 +1,160 @@
+/*****************************************************************************
+* | File      	:   EPD_2IN66_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.66inch e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-07-29
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in66.h"
+
+int EPD_2in66_test(void)
+{
+    printf("EPD_2IN66_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN66_Init();
+    EPD_2IN66_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_2IN66_WIDTH % 8 == 0)? (EPD_2IN66_WIDTH / 8 ): (EPD_2IN66_WIDTH / 8 + 1)) * EPD_2IN66_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN66_WIDTH, EPD_2IN66_HEIGHT, 270, WHITE);
+
+#if 1   //show image for array    
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in66);
+
+    EPD_2IN66_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+	
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2IN66_Display(BlackImage);
+    DEV_Delay_ms(4000);   
+#endif
+
+#if 1	//partial refresh, show time
+    printf("EPD_2IN66_DisplayPart\r\n");
+    EPD_2IN66_Init_Partial();
+	
+	Paint_SelectImage(BlackImage);
+	
+	PAINT_TIME sPaint_time;	//time struct
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UWORD num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+		
+        Paint_ClearWindows(180, 100, 296, 152, WHITE);
+        Paint_DrawTime(180, 110, &sPaint_time, &Font20, WHITE, BLACK);
+
+        //num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		
+	printf("Part refresh...\r\n");
+    EPD_2IN66_Display(BlackImage);
+
+	DEV_Delay_ms(500);
+	}
+	EPD_2IN66_Clear();
+#endif
+	
+    printf("Clear...\r\n");
+	EPD_2IN66_Init();
+	EPD_2IN66_Clear();
+	
+    printf("Goto Sleep...\r\n");
+	EPD_2IN66_Sleep();
+	
+    free(BlackImage);
+    BlackImage = NULL;
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in66b_test.c

@@ -0,0 +1,129 @@
+/*****************************************************************************
+* | File      	:   EPD_2IN66b_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.66inch e-paper b test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-12-02
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in66b.h"
+
+int EPD_2in66b_test(void)
+{
+    printf("EPD_2IN66B_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN66B_Init();
+    EPD_2IN66B_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage, *RedImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_2IN66B_WIDTH % 8 == 0)? (EPD_2IN66B_WIDTH / 8 ): (EPD_2IN66B_WIDTH / 8 + 1)) * EPD_2IN66B_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RedImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN66B_WIDTH, EPD_2IN66B_HEIGHT, 270, WHITE);
+	Paint_Clear(WHITE);
+	Paint_NewImage(RedImage, EPD_2IN66B_WIDTH, EPD_2IN66B_HEIGHT, 270, WHITE);
+	Paint_Clear(WHITE);
+
+
+#if 1   //show image for array    
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in66bb);
+
+	Paint_SelectImage(RedImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in66br);
+	
+    EPD_2IN66B_Display(BlackImage, RedImage);
+    DEV_Delay_ms(3000);
+#endif
+	
+#if 1   // Drawing on the image
+    printf("Drawing\r\n");
+
+    //1.Draw black image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    //2.Draw red image
+    Paint_SelectImage(RedImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+
+    EPD_2IN66B_Display(BlackImage, RedImage);
+    DEV_Delay_ms(3000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_2IN66B_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN66B_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    free(RedImage);
+    RedImage = NULL;
+	
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+
+    return 0;
+}
+
+

lib/Pico_ePaper_Code/c/examples/EPD_2in7_V2_test.c

@@ -0,0 +1,325 @@
+/*****************************************************************************
+* | File      	:   EPD_2in7_V2.c
+* | Author      :   Waveshare team
+* | Function    :   2.7inch V2 e-paper
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2022-08-18
+* | Info        :
+* -----------------------------------------------------------------------------
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in7_V2.h"
+
+int EPD_2in7_V2_test(void)
+{
+    printf("EPD_2IN7_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+	EPD_2IN7_V2_Init();
+    EPD_2IN7_V2_Clear();
+
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    UWORD Imagesize = ((EPD_2IN7_V2_WIDTH % 8 == 0)? (EPD_2IN7_V2_WIDTH / 8 ): (EPD_2IN7_V2_WIDTH / 8 + 1)) * EPD_2IN7_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN7_V2_WIDTH, EPD_2IN7_V2_HEIGHT, 90, WHITE);
+	Paint_Clear(WHITE);
+	
+#if 1   // show bmp
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in7);
+    EPD_2IN7_V2_Display(BlackImage);
+    DEV_Delay_ms(500);
+
+#endif
+
+#if 1  // Drawing on the image
+	Paint_NewImage(BlackImage, EPD_2IN7_V2_WIDTH, EPD_2IN7_V2_HEIGHT, 90, WHITE);  	
+    printf("Drawing\r\n");
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+	
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2IN7_V2_Display_Base(BlackImage);
+    DEV_Delay_ms(3000);
+#endif
+
+#if 1  // Fast Drawing on the image
+    // Fast refresh
+    printf("This is followed by a quick refresh demo\r\n");
+    printf("First, clear the screen\r\n");
+    EPD_2IN7_V2_Init();
+    EPD_2IN7_V2_Clear();
+
+    printf("e-Paper Init Fast\r\n");
+    EPD_2IN7_V2_Init_Fast();
+	Paint_NewImage(BlackImage, EPD_2IN7_V2_WIDTH, EPD_2IN7_V2_HEIGHT, 90, WHITE);  	
+    printf("Drawing\r\n");
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    printf("show window BMP-----------------\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in7);
+    EPD_2IN7_V2_Display_Fast(BlackImage);
+    DEV_Delay_ms(500);
+
+    // 2.Drawing on the image
+    Paint_Clear(WHITE);
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2IN7_V2_Display_Fast(BlackImage);
+    DEV_Delay_ms(3000);
+
+    
+
+#endif
+
+#if 1   //Partial refresh, example shows time    	
+    // If you didn't use the EPD_2IN7_V2_Display_Base() function to refresh the image before,
+    // use the EPD_2IN7_V2_Display_Base_color() function to refresh the background color, 
+    // otherwise the background color will be garbled 
+    EPD_2IN7_V2_Init();
+    // EPD_2IN7_V2_Display_Base_color(WHITE);
+	Paint_NewImage(BlackImage, 50, 120, 90, WHITE);
+    
+    printf("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+	Paint_SetScale(2);
+    Paint_Clear(WHITE);
+    
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 15;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        
+        Paint_Clear(WHITE);
+		Paint_DrawRectangle(1, 1, 120, 50, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+        Paint_DrawTime(10, 15, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		printf("Part refresh...\r\n");
+        EPD_2IN7_V2_Display_Partial(BlackImage, 60, 134, 110, 254); // Xstart must be a multiple of 8
+        DEV_Delay_ms(500);
+    }
+#endif
+
+#if 1 // show image for array
+    free(BlackImage);
+    printf("show Gray------------------------\r\n");
+    Imagesize = ((EPD_2IN7_V2_WIDTH % 4 == 0)? (EPD_2IN7_V2_WIDTH / 4 ): (EPD_2IN7_V2_WIDTH / 4 + 1)) * EPD_2IN7_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    EPD_2IN7_V2_Init_4GRAY();
+    printf("4 grayscale display\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN7_V2_WIDTH, EPD_2IN7_V2_HEIGHT, 90, WHITE);
+    Paint_SetScale(4);
+    Paint_Clear(0xff);
+    
+    Paint_DrawPoint(10, 80, GRAY4, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, GRAY4, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, GRAY4, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, GRAY2, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, GRAY4, GRAY1);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, GRAY3, GRAY1);
+    Paint_DrawNum(10, 33, 123456789, &Font12, GRAY4, GRAY2);
+    Paint_DrawNum(10, 50, 987654321, &Font16, GRAY1, GRAY4);
+     Paint_DrawString_CN(150, 0,"ÄãºÃabc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"ÄãºÃabc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"ÄãºÃabc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"ÄãºÃabc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(10, 130, "΢ѩµç×Ó", &Font24CN, GRAY1, GRAY4);
+    EPD_2IN7_V2_4GrayDisplay(BlackImage);
+    DEV_Delay_ms(3000);
+
+    Paint_NewImage(BlackImage, EPD_2IN7_V2_WIDTH, EPD_2IN7_V2_HEIGHT, 0, WHITE);
+    Paint_SetScale(4);
+    Paint_Clear(WHITE);
+    EPD_2IN7_V2_4GrayDisplay(gImage_2in7_4Gray);
+    DEV_Delay_ms(3000);
+
+#endif
+
+#if 1
+
+    EPD_2IN7_V2_Init();
+    EPD_2IN7_V2_Clear();
+    printf("Goto Sleep...\r\n");
+    EPD_2IN7_V2_Sleep();
+
+    int key=0; 
+
+    gpio_set_dir(KEY0, GPIO_IN);
+    gpio_pull_up(KEY0);//Need to pull up
+
+    gpio_set_dir(KEY1, GPIO_IN);
+    gpio_pull_up(KEY1);//Need to pull up
+
+    gpio_set_dir(KEY2, GPIO_IN);
+    gpio_pull_up(KEY2);//Need to pull up
+    while(1)
+    {
+        if(DEV_Digital_Read(KEY0 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_2IN7_V2_Init();
+            Paint_DrawBitMap(gImage_2in7);
+            EPD_2IN7_V2_Display(BlackImage);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY1 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_2IN7_V2_Init_4GRAY();
+            EPD_2IN7_V2_4GrayDisplay(gImage_2in7_4Gray);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY2 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_2IN7_V2_Init_4GRAY();
+            EPD_2IN7_V2_4GrayDisplay(gImage_2in7_4Gray_1);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY0 ) == 1&&DEV_Digital_Read(KEY1 ) == 1&&DEV_Digital_Read(KEY2 ) == 1 && key == 1 )
+        {
+            key=0;
+            EPD_2IN7_V2_Init();
+            EPD_2IN7_V2_Clear();
+            printf("Goto Sleep...\r\n");
+            EPD_2IN7_V2_Sleep();
+        }
+            
+    }
+
+#endif
+
+	printf("Clear...\r\n");
+	EPD_2IN7_V2_Init();
+    EPD_2IN7_V2_Clear();
+	
+    printf("Goto Sleep...\r\n");
+    EPD_2IN7_V2_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    return 0;
+}

lib/Pico_ePaper_Code/c/examples/EPD_2in7_test.c

@@ -0,0 +1,206 @@
+/*****************************************************************************
+* | File      	:   EPD_2IN7_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch e-paper V2 test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2021-06-03
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in7.h"
+
+int EPD_2in7_test(void)
+{
+    printf("EPD_2IN7_test Demo\r\n");
+    DEV_Module_Init();
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN7_Init();
+    EPD_2IN7_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_2IN7_WIDTH % 8 == 0)? (EPD_2IN7_WIDTH / 8 ): (EPD_2IN7_WIDTH / 8 + 1)) * EPD_2IN7_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN7_WIDTH, EPD_2IN7_HEIGHT, 270, WHITE);
+
+#if 0   // show image for array   
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in7);
+    EPD_2IN7_Display(BlackImage);
+    DEV_Delay_ms(500);
+#endif
+
+#if 1   // Drawing on the image
+    //1.Select Image
+    printf("SelectImage:BlackImage\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN7_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+		free(BlackImage);
+#if 1 // show image for array
+    printf("show Gray------------------------\r\n");
+    Imagesize = ((EPD_2IN7_WIDTH % 4 == 0)? (EPD_2IN7_WIDTH / 4 ): (EPD_2IN7_WIDTH / 4 + 1)) * EPD_2IN7_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("4 grayscale display\r\n");
+    EPD_2IN7_Init_4Gray();
+    Paint_NewImage(BlackImage, EPD_2IN7_WIDTH, EPD_2IN7_HEIGHT, 270, WHITE);
+    Paint_SetScale(4);
+    Paint_Clear(WHITE);
+    
+    Paint_DrawPoint(10, 80, GRAY4, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, GRAY4, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, GRAY4, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, GRAY2, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, GRAY4, GRAY1);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, GRAY3, GRAY1);
+    Paint_DrawNum(10, 33, 123456789, &Font12, GRAY4, GRAY2);
+    Paint_DrawNum(10, 50, 987654321, &Font16, GRAY1, GRAY4);
+    Paint_DrawString_CN(150, 0,"ÄãºÃabc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"ÄãºÃabc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"ÄãºÃabc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"ÄãºÃabc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(10, 130, "΢ѩµç×Ó", &Font24CN, GRAY1, GRAY4);
+    EPD_2IN7_4GrayDisplay(BlackImage);
+    DEV_Delay_ms(3000);
+    /*
+    EPD_2IN7_4GrayDisplay(gImage_2in7_4Gray);
+    DEV_Delay_ms(3000);*/
+#endif
+    
+
+#if 1 
+
+    EPD_2IN7_Init();
+    EPD_2IN7_Clear();
+    printf("Goto Sleep...\r\n");
+    EPD_2IN7_Sleep();
+
+    int key=0; 
+
+    gpio_set_dir(KEY0, GPIO_IN);
+    gpio_pull_up(KEY0);//Need to pull up
+
+    gpio_set_dir(KEY1, GPIO_IN);
+    gpio_pull_up(KEY1);//Need to pull up
+
+    gpio_set_dir(KEY2, GPIO_IN);
+    gpio_pull_up(KEY2);//Need to pull up
+    while(1)
+    {
+        if(DEV_Digital_Read(KEY0 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_2IN7_Init();
+            Paint_DrawBitMap(gImage_2in7);
+            EPD_2IN7_Display(BlackImage);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY1 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_2IN7_Init_4Gray();
+            EPD_2IN7_4GrayDisplay(gImage_2in7_4Gray);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY2 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_2IN7_Init_4Gray();
+            EPD_2IN7_4GrayDisplay(gImage_2in7_4Gray_1);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY0 ) == 1&&DEV_Digital_Read(KEY1 ) == 1&&DEV_Digital_Read(KEY2 ) == 1 && key == 1 )
+        {
+            key=0;
+            EPD_2IN7_Init();
+            EPD_2IN7_Clear();
+            printf("Goto Sleep...\r\n");
+            EPD_2IN7_Sleep();
+        }
+            
+    }
+
+#endif
+
+    EPD_2IN7_Init();
+    printf("Clear...\r\n");
+    EPD_2IN7_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN7_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}

lib/Pico_ePaper_Code/c/examples/EPD_2in9_V2_test.c

@@ -0,0 +1,204 @@
+/*****************************************************************************
+* | File      	:   EPD_2IN9_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch e-paper V2 test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-10-20
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in9_V2.h"
+
+int EPD_2in9_V2_test(void)
+{
+    printf("EPD_2IN9_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+	EPD_2IN9_V2_Init();
+    EPD_2IN9_V2_Clear();
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    // Additional `*2` on the end to account for four-colour images
+    UWORD Imagesize = ((EPD_2IN9_V2_WIDTH % 8 == 0)? (EPD_2IN9_V2_WIDTH / 8 ): (EPD_2IN9_V2_WIDTH / 8 + 1)) * EPD_2IN9_V2_HEIGHT * 2;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 90, WHITE);
+    Paint_SetScale(2); // b&w
+	Paint_Clear(WHITE);
+
+#if 1  //show image for array  
+    Paint_NewImage(BlackImage, EPD_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 90, WHITE);
+    Paint_SetScale(2); // b&w
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in9);
+
+    EPD_2IN9_V2_Display(BlackImage);
+    DEV_Delay_ms(3000);
+#endif
+
+#if 1  // Drawing on the image
+	Paint_NewImage(BlackImage, EPD_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 90, WHITE);
+    Paint_SetScale(2); // b&w
+    printf("Drawing\r\n");
+    //1.Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+	
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    EPD_2IN9_V2_Display_Base(BlackImage);
+    DEV_Delay_ms(3000);
+#endif
+
+#if 1   //Partial refresh, example shows time    		
+	Paint_NewImage(BlackImage, EPD_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 90, WHITE);  
+    printf("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+	
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, WHITE);
+        Paint_DrawTime(150, 80, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		EPD_2IN9_V2_Display_Partial(BlackImage);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+#endif
+
+#if 1 //show 4colour image for array
+    free(BlackImage);
+    printf("show Gray------------------------\r\n");
+    Imagesize = ((EPD_2IN9_V2_WIDTH % 4 == 0)? (EPD_2IN9_V2_WIDTH / 4 ): (EPD_2IN9_V2_WIDTH / 4 + 1)) * EPD_2IN9_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    EPD_2IN9_V2_Gray4_Init();
+    printf("4 grayscale display\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 90, WHITE);
+    Paint_SetScale(4);
+    Paint_Clear(0xff);
+    
+    Paint_DrawPoint(10, 80, GRAY4, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, GRAY4, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, GRAY4, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, GRAY2, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, GRAY4, GRAY1);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, GRAY3, GRAY1);
+    Paint_DrawNum(10, 33, 123456789, &Font12, GRAY4, GRAY2);
+    Paint_DrawNum(10, 50, 987654321, &Font16, GRAY1, GRAY4);
+    Paint_DrawString_CN(150, 0,"ÄãºÃabc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"ÄãºÃabc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"ÄãºÃabc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"ÄãºÃabc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(150, 80, "΢ѩµç×Ó", &Font24CN, GRAY1, GRAY4);
+    EPD_2IN9_V2_4GrayDisplay(BlackImage);
+    DEV_Delay_ms(3000);
+
+    Paint_NewImage(BlackImage, EPD_2IN9_V2_WIDTH, EPD_2IN9_V2_HEIGHT, 0, WHITE);
+    Paint_SetScale(4);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in9_4gray);
+    EPD_2IN9_V2_4GrayDisplay(BlackImage);
+    DEV_Delay_ms(3000);
+
+#endif
+
+	printf("Clear...\r\n");
+	EPD_2IN9_V2_Init();
+    EPD_2IN9_V2_Clear();
+	
+    printf("Goto Sleep...\r\n");
+    EPD_2IN9_V2_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    return 0;
+}

lib/Pico_ePaper_Code/c/examples/EPD_2in9b_V3_test.c

@@ -0,0 +1,121 @@
+/*****************************************************************************
+* | File      	:   EPD_2in9b_V3_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch B V3 e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.1
+* | Date        :   2020-12-03
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in9b_V3.h"
+ 
+int EPD_2in9b_V3_test(void)
+{
+    printf("EPD_2IN9B_V3_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN9B_V3_Init();
+    EPD_2IN9B_V3_Clear();
+    DEV_Delay_ms(500);
+    
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_2IN9B_V3_WIDTH % 8 == 0)? (EPD_2IN9B_V3_WIDTH / 8 ): (EPD_2IN9B_V3_WIDTH / 8 + 1)) * EPD_2IN9B_V3_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN9B_V3_WIDTH, EPD_2IN9B_V3_HEIGHT, 270, WHITE);
+    Paint_NewImage(RYImage, EPD_2IN9B_V3_WIDTH, EPD_2IN9B_V3_HEIGHT, 270, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_2IN9B_V3_Display(gImage_2in9bc_b, gImage_2in9bc_ry);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    //2.Draw red image
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN9B_V3_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_2IN9B_V3_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN9B_V3_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in9b_V4_test.c

@@ -0,0 +1,175 @@
+/*****************************************************************************
+* | File      	:   EPD_2in9b_V4_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch B V4 e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2023-12-18
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in9b_V4.h"
+ 
+int EPD_2in9b_V4_test(void)
+{
+    printf("EPD_2IN9B_V4_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN9B_V4_Init();
+    EPD_2IN9B_V4_Clear();
+    DEV_Delay_ms(500);
+    
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_2IN9B_V4_WIDTH % 8 == 0)? (EPD_2IN9B_V4_WIDTH / 8 ): (EPD_2IN9B_V4_WIDTH / 8 + 1)) * EPD_2IN9B_V4_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN9B_V4_WIDTH, EPD_2IN9B_V4_HEIGHT, 270, WHITE);
+    Paint_NewImage(RYImage, EPD_2IN9B_V4_WIDTH, EPD_2IN9B_V4_HEIGHT, 270, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+
+#if 1  // show image for array    
+    EPD_2IN9B_V4_Init_Fast();
+    printf("show image for array\r\n");
+    EPD_2IN9B_V4_Display_Fast(gImage_2in9bc_b, gImage_2in9bc_ry);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    EPD_2IN9B_V4_Init();
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    //2.Draw red image
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    // Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    // Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN9B_V4_Display_Base(BlackImage, RYImage);
+    // EPD_2IN9B_V4_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   //Partial refresh, example shows time    	
+    // If you didn't use the EPD_2IN9B_V4_Display_Base() function to refresh the image before,
+    // use the EPD_2IN9B_V4_Display_Base_color() function to refresh the background color, 
+    // otherwise the background color will be garbled 
+    // EPD_2IN9B_V4_Init();
+    // EPD_2IN9B_V4_Display_Base(BlackImage, RYImage);
+    // EPD_2IN9B_V4_Display_Base_color(WHITE);
+	Paint_NewImage(BlackImage, 50, 120, 270, WHITE);
+    
+    printf("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+	Paint_SetScale(2);
+    Paint_Clear(WHITE);
+    
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 15;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        
+        Paint_Clear(WHITE);
+		Paint_DrawRectangle(1, 1, 120, 50, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+        Paint_DrawTime(10, 15, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		printf("Part refresh...\r\n");
+        EPD_2IN9B_V4_Display_Partial(BlackImage, 70, 35, 120, 155); // Xstart must be a multiple of 8
+        DEV_Delay_ms(500);
+    }
+#endif
+
+    printf("Clear...\r\n");
+    EPD_2IN9B_V4_Init();
+    EPD_2IN9B_V4_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN9B_V4_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in9bc_test.c

@@ -0,0 +1,121 @@
+/*****************************************************************************
+* | File      	:   EPD_2in9bc_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch B&C e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-12
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in9bc.h"
+
+int EPD_2in9bc_test(void)
+{
+    printf("EPD_2IN9BC_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+    
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN9BC_Init();
+    EPD_2IN9BC_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_2IN9BC_WIDTH % 8 == 0)? (EPD_2IN9BC_WIDTH / 8 ): (EPD_2IN9BC_WIDTH / 8 + 1)) * EPD_2IN9BC_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN9BC_WIDTH, EPD_2IN9BC_HEIGHT, 270, WHITE);
+    Paint_NewImage(RYImage, EPD_2IN9BC_WIDTH, EPD_2IN9BC_HEIGHT, 270, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_2IN9BC_Display(gImage_2in9bc_b, gImage_2in9bc_ry);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+
+    //2.Draw red image
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN9BC_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_2IN9BC_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN9BC_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_2in9d_test.c

@@ -0,0 +1,146 @@
+/*****************************************************************************
+* | File      	:   EPD_2in9d_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch e-paper d test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-13
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_2in9d.h"
+
+int EPD_2in9d_test(void)
+{
+    printf("EPD_2IN9D_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_2IN9D_Init();
+    EPD_2IN9D_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_2IN9D_WIDTH % 8 == 0)? (EPD_2IN9D_WIDTH / 8 ): (EPD_2IN9D_WIDTH / 8 + 1)) * EPD_2IN9D_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_2IN9D_WIDTH, EPD_2IN9D_HEIGHT, 270, WHITE); 
+    
+#if 1   //show image for array    
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_2in9);
+
+    EPD_2IN9D_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    //1.Select Image
+    printf("SelectImage:BlackImage\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);    
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(130, 0, "ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    printf("EPD_Display\r\n");
+    EPD_2IN9D_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   //Partial refresh, example shows time    		
+    printf("Partial refresh\r\n");
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 20;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, WHITE);
+        Paint_DrawTime(150, 80, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+        EPD_2IN9D_DisplayPart(BlackImage);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+
+#endif
+    printf("Clear...\r\n");
+//    EPD_2IN9D_Init();
+    EPD_2IN9D_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_2IN9D_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_3in7_test.c

@@ -0,0 +1,151 @@
+/*****************************************************************************
+* | File      	:   EPD_3IN7_test.c
+* | Author      :   Waveshare team
+* | Function    :   3.7inch e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-07-16
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_3in7.h"
+
+int EPD_3in7_test(void)
+{
+    printf("EPD_3IN7_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+	EPD_3IN7_4Gray_Init();
+    EPD_3IN7_4Gray_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_3IN7_WIDTH % 4 == 0)? (EPD_3IN7_WIDTH / 4 ): (EPD_3IN7_WIDTH / 4 + 1)) * EPD_3IN7_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_3IN7_WIDTH, EPD_3IN7_HEIGHT, 90, WHITE);
+    Paint_SetScale(4);
+    Paint_Clear(WHITE);
+
+#if 1 // Drawing on the image, partial display
+    //1.Select Image
+    printf("SelectImage:BlackImage\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_SetScale(4);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_EN(10, 150, "GRAY1 with black background", &Font24, BLACK, GRAY1);
+    Paint_DrawString_EN(10, 175, "GRAY2 with white background", &Font24, WHITE, GRAY2);
+    Paint_DrawString_EN(10, 200, "GRAY3 with white background", &Font24, WHITE, GRAY3);
+    Paint_DrawString_EN(10, 225, "GRAY4 with white background", &Font24, WHITE, GRAY4);
+    printf("EPD_Display\r\n");
+    EPD_3IN7_4Gray_Display(BlackImage);
+    DEV_Delay_ms(4000);
+#endif
+
+#if 1 // partial update, just 1 Gray mode
+    Paint_NewImage(BlackImage, 50, 120, 90, WHITE);
+    EPD_3IN7_1Gray_Init();       //init 1 Gray mode
+    EPD_3IN7_1Gray_Clear();
+    Paint_SelectImage(BlackImage);
+    Paint_SetScale(2);
+    Paint_Clear(WHITE);
+    printf("show time, partial update, just 1 Gary mode\r\n");
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 15;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+	    Paint_Clear(WHITE);
+		Paint_DrawRectangle(1, 1, 120, 50, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+        Paint_DrawTime(10, 15, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+
+        printf("Part refresh...\r\n");
+        EPD_3IN7_1Gray_Display_Part(BlackImage, 210, 340, 260, 460); // Xstart must be a multiple of 8
+        DEV_Delay_ms(500);
+    }
+
+#endif
+    EPD_3IN7_4Gray_Init();
+    printf("Clear...\r\n");
+    EPD_3IN7_4Gray_Clear();
+    
+    // Sleep & close 5V
+    printf("Goto Sleep...\r\n");
+    EPD_3IN7_Sleep();
+
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_4in2_V2_test.c

@@ -0,0 +1,263 @@
+/*****************************************************************************
+* | File      	:   EPD_4in2_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   4.2inch e-paper V2 test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2023-09-12
+* | Info        :
+* -----------------------------------------------------------------------------
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_4in2_V2.h"
+#include <string.h>
+
+int EPD_4in2_V2_test(void)
+{
+    printf("EPD_4IN2_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_4IN2_V2_Init();
+    EPD_4IN2_V2_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_4IN2_V2_WIDTH % 8 == 0)? (EPD_4IN2_V2_WIDTH / 8 ): (EPD_4IN2_V2_WIDTH / 8 + 1)) * EPD_4IN2_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_4IN2_V2_WIDTH, EPD_4IN2_V2_HEIGHT, 0, WHITE);
+
+#if 1  // show bmp
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_4in2);
+    EPD_4IN2_V2_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif        
+
+#if 0  // show image for array   
+    EPD_4IN2_V2_Init_Fast(Seconds_1S);
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_4in2);
+    EPD_4IN2_V2_Display_Fast(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+
+    EPD_4IN2_V2_Init();
+    //1.Select Image
+    printf("SelectImage:BlackImage\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(130, 0, " ???abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "??????", &Font24CN, WHITE, BLACK);
+
+    printf("EPD_Display\r\n");
+    // EPD_4IN2_V2_Display(BlackImage);
+	EPD_4IN2_V2_Display(BlackImage);
+	DEV_Delay_ms(2000);
+#endif
+
+#if 1
+	printf("Partial refresh\r\n");
+    Paint_NewImage(BlackImage, 120, 50, 0, WHITE);
+	PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+	for (;;) {
+		sPaint_time.Sec = sPaint_time.Sec + 1;
+		if (sPaint_time.Sec == 60) {
+			sPaint_time.Min = sPaint_time.Min + 1;
+			sPaint_time.Sec = 0;
+			if (sPaint_time.Min == 60) {
+				sPaint_time.Hour =  sPaint_time.Hour + 1;
+				sPaint_time.Min = 0;
+				if (sPaint_time.Hour == 24) {
+					sPaint_time.Hour = 0;
+					sPaint_time.Min = 0;
+					sPaint_time.Sec = 0;
+				}
+			}
+		}
+		Paint_Clear(WHITE);
+		Paint_DrawRectangle(1, 1, 120, 50, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+        Paint_DrawTime(10, 15, &sPaint_time, &Font20, WHITE, BLACK);
+		EPD_4IN2_V2_PartialDisplay(BlackImage, 200, 80, 320, 130);
+		DEV_Delay_ms(500);//Analog clock 1s
+		num = num - 1;
+		if(num == 0) {
+			break;
+		}
+    }
+#endif
+
+
+#if 1
+    // EPD_4IN2_V2_Init();
+	// EPD_4IN2_V2_Clear();
+	EPD_4IN2_V2_Init_4Gray();
+	printf("show Gray------------------------\r\n");
+	free(BlackImage);
+	BlackImage = NULL;
+	Imagesize = ((EPD_4IN2_V2_WIDTH % 8 == 0)? (EPD_4IN2_V2_WIDTH / 4 ): (EPD_4IN2_V2_WIDTH / 4 + 1)) * EPD_4IN2_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+	Paint_NewImage(BlackImage, EPD_4IN2_V2_WIDTH, EPD_4IN2_V2_HEIGHT, 0, WHITE);
+	Paint_SetScale(4);
+	Paint_Clear(WHITE);
+
+	Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(140, 0, "???abc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(140, 40, "???abc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(140, 80, "???abc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(140, 120, "???abc", &Font12CN, GRAY4, GRAY1);
+	
+    Paint_DrawString_CN(220, 0, "??????", &Font24CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(220, 40, "??????", &Font24CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(220, 80, "??????", &Font24CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(220, 120, "??????", &Font24CN, GRAY4, GRAY1);
+	
+	EPD_4IN2_V2_Display_4Gray(BlackImage);
+	DEV_Delay_ms(2000);
+
+	Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_4in2_4Gray1);
+    EPD_4IN2_V2_Display_4Gray(BlackImage);
+	DEV_Delay_ms(2000);
+
+#endif
+
+
+#if 0
+
+    free(BlackImage);
+    BlackImage = NULL;  
+    Imagesize = ((EPD_4IN2_V2_WIDTH % 8 == 0)? (EPD_4IN2_V2_WIDTH / 4 ): (EPD_4IN2_V2_WIDTH / 4 + 1)) * EPD_4IN2_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    Paint_NewImage(BlackImage, EPD_4IN2_V2_WIDTH, EPD_4IN2_V2_HEIGHT, 0, WHITE);
+	Paint_SetScale(4);
+	Paint_Clear(WHITE);
+
+    int key=0; 
+
+    gpio_set_dir(KEY0, GPIO_IN);
+    gpio_pull_up(KEY0);//Need to pull up
+
+    gpio_set_dir(KEY1, GPIO_IN);
+    gpio_pull_up(KEY1);//Need to pull up
+	
+	while(1)
+	{
+	
+		if(DEV_Digital_Read(KEY0 ) == 0 && key==0)
+	    {
+	        key=1;
+	        EPD_4IN2_V2_Init();
+	        Paint_DrawBitMap(gImage_4in2);
+	        EPD_4IN2_V2_Display(BlackImage);
+	        DEV_Delay_ms(2000);
+	    }
+	
+	    if(DEV_Digital_Read(KEY1 ) == 0 && key==0)
+	    {
+	        key=1;
+	        EPD_4IN2_V2_Init_4Gray();
+	        Paint_DrawBitMap(gImage_4in2_4Gray1);
+            EPD_4IN2_V2_Display_4Gray(BlackImage);
+	        DEV_Delay_ms(2000);
+	    }
+	    
+	    if(DEV_Digital_Read(KEY0 ) == 1 && DEV_Digital_Read(KEY1 ) == 1 && key == 1 )
+	    {
+	        key=0;
+            EPD_4IN2_V2_Init();
+	        EPD_4IN2_V2_Clear();
+	    }
+
+	}
+#endif
+
+    EPD_4IN2_V2_Init();
+    EPD_4IN2_V2_Clear();
+    printf("Goto Sleep...\r\n");
+    EPD_4IN2_V2_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_4in2_test.c

@@ -0,0 +1,227 @@
+/*****************************************************************************
+* | File      	:   EPD_4in2_test.c
+* | Author      :   Waveshare team
+* | Function    :   4.2inch e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-13
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_4in2.h"
+#include <string.h>
+
+int EPD_4in2_test(void)
+{
+    printf("EPD_4IN2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_4IN2_Init_Fast();
+    EPD_4IN2_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_4IN2_WIDTH % 8 == 0)? (EPD_4IN2_WIDTH / 8 ): (EPD_4IN2_WIDTH / 8 + 1)) * EPD_4IN2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_4IN2_WIDTH, EPD_4IN2_HEIGHT, 0, WHITE);
+    
+#if 1   // show image for array   
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_4in2);
+    EPD_4IN2_Display(BlackImage);
+    DEV_Delay_ms(500);
+#endif
+
+#if 1   // Drawing on the image
+    //1.Select Image
+    printf("SelectImage:BlackImage\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(130, 0, "���abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ����", &Font24CN, WHITE, BLACK);
+
+    printf("EPD_Display\r\n");
+    EPD_4IN2_Display(BlackImage);
+	DEV_Delay_ms(2000);
+#endif
+	
+#if 0
+    printf("Support for partial refresh, but the refresh effect is not good, but it is not recommended\r\n");
+	printf("Partial refresh\r\n");
+    EPD_4IN2_Init_Partial();
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 20;
+	for (;;) {
+		sPaint_time.Sec = sPaint_time.Sec + 1;
+		if (sPaint_time.Sec == 60) {
+			sPaint_time.Min = sPaint_time.Min + 1;
+			sPaint_time.Sec = 0;
+			if (sPaint_time.Min == 60) {
+				sPaint_time.Hour =  sPaint_time.Hour + 1;
+				sPaint_time.Min = 0;
+				if (sPaint_time.Hour == 24) {
+					sPaint_time.Hour = 0;
+					sPaint_time.Min = 0;
+					sPaint_time.Sec = 0;
+				}
+			}
+		}
+		Paint_ClearWindows(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, WHITE);
+		Paint_DrawTime(150, 80, &sPaint_time, &Font20, WHITE, BLACK);
+		EPD_4IN2_PartialDisplay(150, 80, 150 + Font20.Width * 7, 80 + Font20.Height, BlackImage);
+		DEV_Delay_ms(500);//Analog clock 1s
+		num = num - 1;
+		if(num == 0) {
+			break;
+		}
+    }
+#endif
+
+	EPD_4IN2_Init_4Gray();
+	printf("show Gray------------------------\r\n");
+	free(BlackImage);
+	BlackImage = NULL;
+	Imagesize = ((EPD_4IN2_WIDTH % 8 == 0)? (EPD_4IN2_WIDTH / 4 ): (EPD_4IN2_WIDTH / 4 + 1)) * EPD_4IN2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+	Paint_NewImage(BlackImage, EPD_4IN2_WIDTH, EPD_4IN2_HEIGHT, 0, WHITE);
+	Paint_SetScale(4);
+	Paint_Clear(WHITE);
+	
+	Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(140, 0, "���abc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(140, 40, "���abc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(140, 80, "���abc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(140, 120, "���abc", &Font12CN, GRAY4, GRAY1);
+	
+    Paint_DrawString_CN(220, 0, "΢ѩ����", &Font24CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(220, 40, "΢ѩ����", &Font24CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(220, 80, "΢ѩ����", &Font24CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(220, 120, "΢ѩ����", &Font24CN, GRAY4, GRAY1);
+    
+    EPD_4IN2_4GrayDisplay(BlackImage);
+	DEV_Delay_ms(500);
+	
+	EPD_4IN2_Clear();
+    
+#if 0
+
+    int key=0; 
+
+    gpio_set_dir(KEY0, GPIO_IN);
+    gpio_pull_up(KEY0);//Need to pull up
+
+    gpio_set_dir(KEY1, GPIO_IN);
+    gpio_pull_up(KEY1);//Need to pull up
+	
+	while(1)
+	{
+	
+		if(DEV_Digital_Read(KEY0 ) == 0 && key==0)
+	    {
+	        key=1;
+	        EPD_4IN2_Init();
+	        Paint_DrawBitMap(gImage_4in2);
+	        EPD_4IN2_Display(BlackImage);
+	        DEV_Delay_ms(2000);
+	    }
+	
+	    if(DEV_Digital_Read(KEY1 ) == 0 && key==0)
+	    {
+	        key=1;
+	        EPD_4IN2_Init_4Gray();
+	        EPD_4IN2_4GrayDisplay(gImage_4in2_4Gray);
+	        DEV_Delay_ms(2000);
+	    }
+	    
+	    if(DEV_Digital_Read(KEY0 ) == 1 && DEV_Digital_Read(KEY1 ) == 1 && key == 1 )
+	    {
+	        key=0;
+	        EPD_4IN2_Clear();
+	    }
+
+	}
+#endif
+	EPD_4IN2_Init_Fast();
+	EPD_4IN2_Clear();
+	
+    printf("Goto Sleep...\r\n");
+    EPD_4IN2_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+	
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_4in2b_V2_test.c

@@ -0,0 +1,191 @@
+/*****************************************************************************
+* | File      	:   EPD_4in2b_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   4.2inch B V2 e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-11-25
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_4in2b_V2.h"
+
+int EPD_4in2b_V2_test(void)
+{
+    printf("EPD_4IN2B_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_4IN2B_V2_Init();
+    EPD_4IN2B_V2_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_4IN2B_V2_WIDTH % 8 == 0)? (EPD_4IN2B_V2_WIDTH / 8 ): (EPD_4IN2B_V2_WIDTH / 8 + 1)) * EPD_4IN2B_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_4IN2B_V2_WIDTH, EPD_4IN2B_V2_HEIGHT, 180, WHITE);
+    Paint_NewImage(RYImage, EPD_4IN2B_V2_WIDTH, EPD_4IN2B_V2_HEIGHT, 180, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+ 
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_4IN2B_V2_Display(gImage_4in2bc_b, gImage_4in2bc_ry);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    printf("Draw black image\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);      
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);    
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    
+    //2.Draw red image
+    printf("Draw red image\r\n");
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);  
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+
+    printf("EPD_Display\r\n");
+    EPD_4IN2B_V2_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+    
+    EPD_4IN2B_V2_Clear();
+#endif
+
+#if 1
+
+    int key=0; 
+
+    gpio_set_dir(KEY0, GPIO_IN);
+    gpio_pull_up(KEY0);//Need to pull up
+
+    gpio_set_dir(KEY1, GPIO_IN);
+    gpio_pull_up(KEY1);//Need to pull up
+	
+	while(1)
+	{
+	
+		if(DEV_Digital_Read(KEY0 ) == 0 && key==0)
+	    {
+	        key=1;
+	        printf("show image for array\r\n");
+		    EPD_4IN2B_V2_Display(gImage_4in2bc_b, gImage_4in2bc_ry);
+		    DEV_Delay_ms(2000);
+	    }
+	
+	    if(DEV_Digital_Read(KEY1 ) == 0 && key==0)
+	    {
+	        key=1;
+	        //1.Draw black image
+		    printf("Draw black image\r\n");
+		    Paint_SelectImage(BlackImage);
+		    Paint_Clear(WHITE);
+		    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+		    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+		    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+		    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+		    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+		    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);      
+		    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+		    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+		    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);    
+		    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+		    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+		    
+		    //2.Draw red image
+		    printf("Draw red image\r\n");
+		    Paint_SelectImage(RYImage);
+		    Paint_Clear(WHITE);
+		    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+		    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+		    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+		    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);  
+		    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+		    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+		    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+		
+		    printf("EPD_Display\r\n");
+		    EPD_4IN2B_V2_Display(BlackImage, RYImage);
+		    DEV_Delay_ms(2000);
+	    }
+	    
+	    if(DEV_Digital_Read(KEY0 ) == 1 && DEV_Digital_Read(KEY1 ) == 1 && key == 1 )
+	    {
+	        key=0;
+	        EPD_4IN2B_V2_Clear();
+	    }
+
+	}
+#endif
+
+    printf("Clear...\r\n");
+    EPD_4IN2B_V2_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_4IN2B_V2_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_4in2b_V2_test_old.c

@@ -0,0 +1,122 @@
+/*****************************************************************************
+* | File      	:   EPD_4in2b_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   4.2inch B V2 e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-04-23
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is 
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_4in2b_V2_old.h"
+
+int EPD_4in2b_V2_test_old(void)
+{
+    printf("EPD_4IN2B_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_4IN2B_V2_Init_1();
+    EPD_4IN2B_V2_Clear_1();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage; // Red or Yellow
+    UWORD Imagesize = ((EPD_4IN2B_V2_WIDTH % 8 == 0)? (EPD_4IN2B_V2_WIDTH / 8 ): (EPD_4IN2B_V2_WIDTH / 8 + 1)) * EPD_4IN2B_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_4IN2B_V2_WIDTH, EPD_4IN2B_V2_HEIGHT, 180, WHITE);
+    Paint_NewImage(RYImage, EPD_4IN2B_V2_WIDTH, EPD_4IN2B_V2_HEIGHT, 180, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_4IN2B_V2_Display_1(gImage_4in2bc_b, gImage_4in2bc_ry);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    printf("Draw black image\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);      
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);    
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    
+    //2.Draw red image
+    printf("Draw red image\r\n");
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);  
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+
+    printf("EPD_Display\r\n");
+    EPD_4IN2B_V2_Display_1(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_4IN2B_V2_Clear_1();
+
+    printf("Goto Sleep...\r\n");
+    EPD_4IN2B_V2_Sleep_1();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_5in65f_test.c

@@ -0,0 +1,195 @@
+/*****************************************************************************
+* | File      	:   EPD_2IN9_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   2.9inch e-paper V2 test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2021-06-03
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_5in65f.h"
+#include "EPD_Test.h"
+
+int EPD_5in65f_test(void)
+{
+	printf("EPD_5in65F_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+	printf("e-Paper Init and Clear...\r\n");
+	EPD_5IN65F_Init();
+	EPD_5IN65F_Clear(EPD_5IN65F_WHITE);
+	DEV_Delay_ms(100);
+				
+	UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+	UDOUBLE Imagesize = ((EPD_5IN65F_WIDTH % 2 == 0)? (EPD_5IN65F_WIDTH / 2 ): (EPD_5IN65F_WIDTH / 2 + 1)) * EPD_5IN65F_HEIGHT;
+	Imagesize = Imagesize/4;
+	printf("Not enough memory, only part of the window is displayed\r\n");
+	printf("Imagesize %d\r\n",Imagesize);
+	if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+			printf("Failed to apply for black memory...\r\n");
+			return -1;
+	}
+	Paint_NewImage(BlackImage, EPD_5IN65F_WIDTH/2, EPD_5IN65F_HEIGHT/2, 0, EPD_5IN65F_WHITE);
+	Paint_SetScale(7);
+
+#if 0
+    printf("show image for array\r\n");
+
+	EPD_5IN65F_Display(flagimage);
+
+    DEV_Delay_ms(4000);
+#endif
+
+#if 0
+	EPD_5IN65F_Display(gImage_5in65f);
+	//EPD_5IN65F_Display_part(gImage_5in65f, 204, 153, 192, 143);
+	DEV_Delay_ms(5000); 
+#endif
+	
+#if 1
+	Paint_Clear(EPD_5IN65F_GREEN);
+	printf("Drawing:BlackImage\r\n");
+	Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+	Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+	Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+	Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+	Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+	Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+	Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+	Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+	Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+	Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+	Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+	Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+	Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+	Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+	Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+	Paint_DrawString_CN(10, 120, "你好abc", &Font12CN, EPD_5IN65F_BLACK, WHITE);
+	Paint_DrawString_CN(10, 140, "你好abc", &Font12CN, EPD_5IN65F_GREEN, WHITE);
+	Paint_DrawString_CN(10, 160, "你好abc", &Font12CN, EPD_5IN65F_BLUE, WHITE);
+	Paint_DrawString_CN(10, 180, "你好abc", &Font12CN, EPD_5IN65F_RED, WHITE);
+	Paint_DrawString_CN(10, 200, "你好abc", &Font12CN, EPD_5IN65F_ORANGE, WHITE);
+	
+	Paint_DrawString_CN(150, 0, "微雪?子", &Font24CN, WHITE, BLACK);
+	Paint_DrawString_CN(150, 40, "微雪?子", &Font24CN, EPD_5IN65F_GREEN, BLACK);
+	Paint_DrawString_CN(150, 80, "微雪?子", &Font24CN, EPD_5IN65F_BLUE, BLACK);
+	Paint_DrawString_CN(150, 120, "微雪?子", &Font24CN, EPD_5IN65F_RED, BLACK);
+	Paint_DrawString_CN(150, 160, "微雪?子", &Font24CN, EPD_5IN65F_YELLOW, BLACK);
+	
+	EPD_5IN65F_Display_part(BlackImage, 0, 0, 300, 224);
+	DEV_Delay_ms(2000); 
+	EPD_5IN65F_Clear(EPD_5IN65F_WHITE);
+#endif
+
+#if 1 
+
+    int key=0; 
+
+    gpio_set_dir(KEY0, GPIO_IN);
+    gpio_pull_up(KEY0);//Need to pull up
+
+    gpio_set_dir(KEY1, GPIO_IN);
+    gpio_pull_up(KEY1);//Need to pull up
+
+    gpio_set_dir(KEY2, GPIO_IN);
+    gpio_pull_up(KEY2);//Need to pull up
+    while(1)
+    {
+        if(DEV_Digital_Read(KEY0 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_5IN65F_Display(flagimage);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY1 ) == 0 && key==0)
+        {
+            key=1;
+            EPD_5IN65F_Display(gImage_5in65f);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY2 ) == 0 && key==0)
+        {
+            key=1;
+            Paint_Clear(EPD_5IN65F_GREEN);
+			printf("Drawing:BlackImage\r\n");
+			Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+			Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+			Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+			Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+			Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+			Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+			Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+			Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+			Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+			Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+			Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+			Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+			Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+			Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+			Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+			Paint_DrawString_CN(10, 120, "你好abc", &Font12CN, EPD_5IN65F_BLACK, WHITE);
+			Paint_DrawString_CN(10, 140, "你好abc", &Font12CN, EPD_5IN65F_GREEN, WHITE);
+			Paint_DrawString_CN(10, 160, "你好abc", &Font12CN, EPD_5IN65F_BLUE, WHITE);
+			Paint_DrawString_CN(10, 180, "你好abc", &Font12CN, EPD_5IN65F_RED, WHITE);
+			Paint_DrawString_CN(10, 200, "你好abc", &Font12CN, EPD_5IN65F_ORANGE, WHITE);
+			
+			Paint_DrawString_CN(150, 0, "微雪?子", &Font24CN, WHITE, BLACK);
+			Paint_DrawString_CN(150, 40, "微雪?子", &Font24CN, EPD_5IN65F_GREEN, BLACK);
+			Paint_DrawString_CN(150, 80, "微雪?子", &Font24CN, EPD_5IN65F_BLUE, BLACK);
+			Paint_DrawString_CN(150, 120, "微雪?子", &Font24CN, EPD_5IN65F_RED, BLACK);
+			Paint_DrawString_CN(150, 160, "微雪?子", &Font24CN, EPD_5IN65F_YELLOW, BLACK);
+			
+			EPD_5IN65F_Display_part(BlackImage, 0, 0, 300, 224);
+            DEV_Delay_ms(3000);
+        }
+
+        if(DEV_Digital_Read(KEY0 ) == 1&&DEV_Digital_Read(KEY1 ) == 1&&DEV_Digital_Read(KEY2 ) == 1 && key == 1 )
+        {
+            key=0;
+            EPD_5IN65F_Clear(EPD_5IN65F_WHITE);
+        }
+            
+    }
+
+#endif
+ 
+	printf("e-Paper Clear...\r\n");
+	EPD_5IN65F_Clear(EPD_5IN65F_WHITE);
+	DEV_Delay_ms(1000); 
+	EPD_5IN65F_Sleep();
+	
+	free(BlackImage);
+	BlackImage = NULL;
+
+	// close 5V
+	printf("close 5V, Module enters 0 power consumption ...\r\n");
+	DEV_Module_Exit();
+	
+	return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_5in83_V2_test.c

@@ -0,0 +1,110 @@
+/*****************************************************************************
+* | File      	:   EPD_5in83_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   5.83inch e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-11-23
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_5in83_V2.h"
+
+int EPD_5in83_V2_test(void)
+{
+    printf("EPD_5IN83_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_5in83_V2_Init();
+    EPD_5in83_V2_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_5in83_V2_WIDTH % 8 == 0)? (EPD_5in83_V2_WIDTH / 8 ): (EPD_5in83_V2_WIDTH / 8 + 1)) * EPD_5in83_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_5in83_V2_WIDTH, EPD_5in83_V2_HEIGHT, 180, WHITE); 
+
+#if 1   // show image for array   
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_5in83_V2);
+    EPD_5in83_V2_Display(BlackImage);
+    DEV_Delay_ms(500);
+#endif
+
+#if 1   // Drawing on the image
+    //1.Select Image
+    printf("SelectImage:BlackImage\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(130, 0, "ÄãºÃAbc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    printf("EPD_Display\r\n");
+    EPD_5in83_V2_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_5in83_V2_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_5in83_V2_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_5in83b_V2_test.c

@@ -0,0 +1,121 @@
+/*****************************************************************************
+* | File      	:   EPD_5in83b_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   5.83inch B V2 e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-07-04
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_5in83b_V2.h"
+
+int EPD_5in83b_V2_test(void)
+{
+    printf("EPD_5in83b_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_5IN83B_V2_Init();
+    EPD_5IN83B_V2_Clear();
+    DEV_Delay_ms(500);
+
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage;
+    UWORD Imagesize = ((EPD_5IN83B_V2_WIDTH % 8 == 0)? (EPD_5IN83B_V2_WIDTH / 8 ): (EPD_5IN83B_V2_WIDTH / 8 + 1)) * EPD_5IN83B_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_5IN83B_V2_WIDTH, EPD_5IN83B_V2_HEIGHT, 0, WHITE);
+    Paint_NewImage(RYImage, EPD_5IN83B_V2_WIDTH, EPD_5IN83B_V2_HEIGHT, 0, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_5IN83B_V2_Display(gImage_5in83b_V2_b, gImage_5in83b_V2_r);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);      
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);    
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    
+    //2.Draw red image
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);  
+    Paint_DrawString_CN(130, 0,"ÄãºÃAbc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    
+    printf("EPD_Display\r\n");
+    EPD_5IN83B_V2_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_5IN83B_V2_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_5IN83B_V2_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_7in5_V2_test.c

@@ -0,0 +1,194 @@
+/*****************************************************************************
+* | File      	:   EPD_7in5_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   7.5inch e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-13
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_7in5_V2.h"
+
+int EPD_7in5_V2_test(void)
+{
+    printf("EPD_7IN5_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_7IN5_V2_Init();
+
+    EPD_7IN5_V2_Clear();
+    DEV_Delay_ms(500);
+	
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UDOUBLE Imagesize = ((EPD_7IN5_V2_WIDTH % 8 == 0)? (EPD_7IN5_V2_WIDTH / 8 ): (EPD_7IN5_V2_WIDTH / 8 + 1)) * EPD_7IN5_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_7IN5_V2_WIDTH, EPD_7IN5_V2_HEIGHT, 0, WHITE);     
+
+#if 1   // show image for array   
+    EPD_7IN5_V2_Init_Fast();
+    printf("show image for array\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawBitMap(gImage_7in5_V2);
+    EPD_7IN5_V2_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    //1.Select Image
+    EPD_7IN5_V2_Init();
+    printf("SelectImage:BlackImage\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(130, 0, " ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    printf("EPD_Display\r\n");
+    EPD_7IN5_V2_Display(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   //Partial refresh, example shows time
+    EPD_7IN5_V2_Init_Part();
+	Paint_NewImage(BlackImage, Font20.Width * 7, Font20.Height, 0, WHITE);
+    Debug("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+	
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(0, 0, Font20.Width * 7, Font20.Height, WHITE);
+        Paint_DrawTime(0, 0, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		EPD_7IN5_V2_Display_Part(BlackImage, 150, 80, 150 + Font20.Width * 7, 80 + Font20.Height);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+#endif
+
+/*
+    The feature will only be available on screens sold after 24/10/23
+*/
+#if 1 // show image for array
+    free(BlackImage);
+    printf("show Gray------------------------\r\n");
+    Imagesize = ((EPD_7IN5_V2_WIDTH % 4 == 0)? (EPD_7IN5_V2_WIDTH / 4 ): (EPD_7IN5_V2_WIDTH / 4 + 1)) * EPD_7IN5_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        while (1);
+    }
+    EPD_7IN5_V2_Init_4Gray();
+    printf("4 grayscale display\r\n");
+    Paint_NewImage(BlackImage, EPD_7IN5_V2_WIDTH, EPD_7IN5_V2_HEIGHT, 0, WHITE);
+    Paint_SetScale(4);
+    Paint_Clear(0xff);
+    
+    Paint_DrawPoint(10, 80, GRAY4, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, GRAY4, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, GRAY4, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, GRAY4, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, GRAY2, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, GRAY4, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, GRAY4, GRAY1);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, GRAY3, GRAY1);
+    Paint_DrawNum(10, 33, 123456789, &Font12, GRAY4, GRAY2);
+    Paint_DrawNum(10, 50, 987654321, &Font16, GRAY1, GRAY4);
+    Paint_DrawString_CN(150, 0,"ÄãºÃabc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"ÄãºÃabc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"ÄãºÃabc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"ÄãºÃabc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(10, 130, "΢ѩµç×Ó", &Font24CN, GRAY1, GRAY4);
+    EPD_7IN5_V2_Display_4Gray(BlackImage);
+    DEV_Delay_ms(3000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_7IN5_V2_Init();
+    EPD_7IN5_V2_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_7IN5_V2_Sleep();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_7in5_V2_test_old.c

@@ -0,0 +1,149 @@
+/*****************************************************************************
+* | File      	:   EPD_7in5_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   7.5inch e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2023-12-18
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_7in5_V2_old.h"
+
+int EPD_7in5_V2_test_old(void)
+{
+    printf("EPD_7IN5_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_7IN5_V2_Init_old();
+    EPD_7IN5_V2_Clear_old();
+    DEV_Delay_ms(500);
+	
+    //Create a new image cache
+    UBYTE *BlackImage;
+    /* you have to edit the startup_stm32fxxx.s file and set a big enough heap size */
+    UWORD Imagesize = ((EPD_7IN5_V2_WIDTH % 8 == 0)? (EPD_7IN5_V2_WIDTH / 8 ): (EPD_7IN5_V2_WIDTH / 8 + 1)) * EPD_7IN5_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    printf("Paint_NewImage\r\n");
+    Paint_NewImage(BlackImage, EPD_7IN5_V2_WIDTH, EPD_7IN5_V2_HEIGHT, 0, WHITE);
+      
+#if 1   // show image for array   
+    printf("show image for array\r\n");
+    EPD_7IN5_V2_Init_Fast_old();
+    EPD_7IN5_V2_Display_old(gImage_7in5_V2);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    //1.Select Image
+    printf("SelectImage:BlackImage\r\n");
+    EPD_7IN5_V2_Init_old();
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+
+    // 2.Drawing on the image
+    printf("Drawing:BlackImage\r\n");
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawCircle(45, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(105, 95, 20, WHITE, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    Paint_DrawString_CN(130, 0, "ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+
+    printf("EPD_Display\r\n");
+    EPD_7IN5_V2_Display_old(BlackImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   //Partial refresh, example shows time
+    EPD_7IN5_V2_Init_Partial_old();
+	Paint_NewImage(BlackImage, Font20.Width * 7, Font20.Height, 0, WHITE);
+    printf("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+	
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(0, 0, Font20.Width * 7, Font20.Height, WHITE);
+        Paint_DrawTime(0, 0, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		EPD_7IN5_V2_Display_Partial_old(BlackImage, 150, 80, 150 + Font20.Width * 7, 80 + Font20.Height);
+        DEV_Delay_ms(500);//Analog clock 1s
+
+    }
+#endif
+
+    printf("Clear...\r\n");
+    EPD_7IN5_V2_Init_old();
+    EPD_7IN5_V2_Clear_old();
+
+    printf("Goto Sleep...\r\n");
+    EPD_7IN5_V2_Sleep_old();
+    free(BlackImage);
+    BlackImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_7in5b_V2_test.c

@@ -0,0 +1,163 @@
+/*****************************************************************************
+* | File      	:   EPD_7in5b_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   7.5inch B e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-11-30
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_7in5b_V2.h"
+
+int EPD_7in5b_V2_test(void)
+{
+    printf("EPD_7IN5B_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_7IN5B_V2_Init();
+	
+    EPD_7IN5B_V2_Clear();
+    DEV_Delay_ms(500);
+	
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage;
+    UWORD Imagesize = ((EPD_7IN5B_V2_WIDTH % 8 == 0)? (EPD_7IN5B_V2_WIDTH / 8 ): (EPD_7IN5B_V2_WIDTH / 8 + 1)) * EPD_7IN5B_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_7IN5B_V2_WIDTH, EPD_7IN5B_V2_HEIGHT , 0, WHITE);
+    Paint_NewImage(RYImage, EPD_7IN5B_V2_WIDTH, EPD_7IN5B_V2_HEIGHT , 0, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_7IN5B_V2_Display(gImage_7in5_V2_b, gImage_7in5_V2_ry);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);      
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);    
+    Paint_DrawString_CN(130, 20, "微雪电子", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    
+    //2.Draw red image
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);  
+    Paint_DrawString_CN(130, 0,"你好Abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    
+    printf("EPD_Display\r\n");
+    EPD_7IN5B_V2_Display(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   //Partial refresh, example shows time
+    EPD_7IN5B_V2_Init_Part();
+    EPD_7IN5B_V2_Display_Base_color(WHITE);
+	Paint_NewImage(BlackImage, Font20.Width * 7, Font20.Height, 0, WHITE);
+    Debug("Partial refresh\r\n");
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+	
+    PAINT_TIME sPaint_time;
+    sPaint_time.Hour = 12;
+    sPaint_time.Min = 34;
+    sPaint_time.Sec = 56;
+    UBYTE num = 10;
+    for (;;) {
+        sPaint_time.Sec = sPaint_time.Sec + 1;
+        if (sPaint_time.Sec == 60) {
+            sPaint_time.Min = sPaint_time.Min + 1;
+            sPaint_time.Sec = 0;
+            if (sPaint_time.Min == 60) {
+                sPaint_time.Hour =  sPaint_time.Hour + 1;
+                sPaint_time.Min = 0;
+                if (sPaint_time.Hour == 24) {
+                    sPaint_time.Hour = 0;
+                    sPaint_time.Min = 0;
+                    sPaint_time.Sec = 0;
+                }
+            }
+        }
+        Paint_ClearWindows(0, 0, Font20.Width * 7, Font20.Height, WHITE);
+        Paint_DrawTime(0, 0, &sPaint_time, &Font20, WHITE, BLACK);
+
+        num = num - 1;
+        if(num == 0) {
+            break;
+        }
+		EPD_7IN5B_V2_Display_Partial(BlackImage, 10, 130, 10 + Font20.Width * 7, 130 + Font20.Height);
+        DEV_Delay_ms(500);//Analog clock 1s
+    }
+#endif
+
+    printf("Clear...\r\n");
+    EPD_7IN5B_V2_Init();
+    EPD_7IN5B_V2_Clear();
+
+    printf("Goto Sleep...\r\n");
+    EPD_7IN5B_V2_Sleep();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_7in5b_V2_test_old.c

@@ -0,0 +1,121 @@
+/*****************************************************************************
+* | File      	:   EPD_7in5b_V2_test.c
+* | Author      :   Waveshare team
+* | Function    :   5.83inch B&C e-paper test demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2020-11-30
+* | Info        :
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#include "EPD_Test.h"
+#include "EPD_7in5b_V2_old.h"
+
+int EPD_7in5b_V2_test_old(void)
+{
+    printf("EPD_7IN5B_V2_test Demo\r\n");
+    if(DEV_Module_Init()!=0){
+        return -1;
+    }
+
+    printf("e-Paper Init and Clear...\r\n");
+    EPD_7IN5B_V2_Init_old();
+    EPD_7IN5B_V2_Clear_old();
+    DEV_Delay_ms(500);
+	
+    //Create a new image cache named IMAGE_BW and fill it with white
+    UBYTE *BlackImage, *RYImage;
+    UWORD Imagesize = ((EPD_7IN5B_V2_WIDTH % 8 == 0)? (EPD_7IN5B_V2_WIDTH / 8 ): (EPD_7IN5B_V2_WIDTH / 8 + 1)) * EPD_7IN5B_V2_HEIGHT;
+    if((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for black memory...\r\n");
+        return -1;
+    }
+    if((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
+        printf("Failed to apply for red memory...\r\n");
+        return -1;
+    }
+    printf("NewImage:BlackImage and RYImage\r\n");
+    Paint_NewImage(BlackImage, EPD_7IN5B_V2_WIDTH, EPD_7IN5B_V2_HEIGHT , 0, WHITE);
+    Paint_NewImage(RYImage, EPD_7IN5B_V2_WIDTH, EPD_7IN5B_V2_HEIGHT , 0, WHITE);
+
+    //Select Image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);  
+    
+#if 1   // show image for array    
+    printf("show image for array\r\n");
+    EPD_7IN5B_V2_Display_old(gImage_7in5_V2_b, gImage_7in5_V2_ry);
+    DEV_Delay_ms(2000);
+#endif
+
+#if 1   // Drawing on the image
+    /*Horizontal screen*/
+    //1.Draw black image
+    Paint_SelectImage(BlackImage);
+    Paint_Clear(WHITE);
+    Paint_DrawPoint(10, 80, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 90, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 100, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawPoint(10, 110, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
+    Paint_DrawLine(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);
+    Paint_DrawLine(70, 70, 20, 120, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);      
+    Paint_DrawRectangle(20, 70, 70, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawRectangle(80, 70, 130, 120, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawString_EN(10, 0, "waveshare", &Font16, BLACK, WHITE);    
+    Paint_DrawString_CN(130, 20, "΢ѩµç×Ó", &Font24CN, WHITE, BLACK);
+    Paint_DrawNum(10, 50, 987654321, &Font16, WHITE, BLACK);
+    
+    //2.Draw red image
+    Paint_SelectImage(RYImage);
+    Paint_Clear(WHITE);
+    Paint_DrawCircle(160, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
+    Paint_DrawCircle(210, 95, 20, BLACK, DOT_PIXEL_1X1, DRAW_FILL_FULL);
+    Paint_DrawLine(85, 95, 125, 95, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);
+    Paint_DrawLine(105, 75, 105, 115, BLACK, DOT_PIXEL_1X1, LINE_STYLE_DOTTED);  
+    Paint_DrawString_CN(130, 0,"ÄãºÃabc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_EN(10, 20, "hello world", &Font12, WHITE, BLACK);
+    Paint_DrawNum(10, 33, 123456789, &Font12, BLACK, WHITE);
+    
+    printf("EPD_Display\r\n");
+    EPD_7IN5B_V2_Display_old(BlackImage, RYImage);
+    DEV_Delay_ms(2000);
+#endif
+
+    printf("Clear...\r\n");
+    EPD_7IN5B_V2_Clear_old();
+
+    printf("Goto Sleep...\r\n");
+    EPD_7IN5B_V2_Sleep_old();
+    free(BlackImage);
+    free(RYImage);
+    BlackImage = NULL;
+    RYImage = NULL;
+    DEV_Delay_ms(2000);//important, at least 2s
+    // close 5V
+    printf("close 5V, Module enters 0 power consumption ...\r\n");
+    DEV_Module_Exit();
+    
+    return 0;
+}
+

lib/Pico_ePaper_Code/c/examples/EPD_Test.h

@@ -0,0 +1,76 @@
+/*****************************************************************************
+* | File      	:	  EPD_Test.h
+* | Author      :   Waveshare team
+* | Function    :   e-Paper test Demo
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2019-06-11
+* | Info        :   
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#ifndef _EPD_TEST_H_
+#define _EPD_TEST_H_
+
+#include "DEV_Config.h"
+#include "GUI_Paint.h"
+#include "ImageData.h"
+#include "Debug.h"
+#include <stdlib.h> // malloc() free()
+
+int EPD_2in9_V2_test(void);
+int EPD_2in9bc_test(void);
+int EPD_2in9b_V3_test(void);
+int EPD_2in9b_V4_test(void);
+int EPD_2in9d_test(void);
+
+int EPD_2in13_V2_test(void);
+int EPD_2in13_V3_test(void);
+int EPD_2in13_V4_test(void);
+int EPD_2in13bc_test(void);
+int EPD_2in13b_V3_test(void);
+int EPD_2in13b_V4_test(void);
+int EPD_2in13d_test(void);
+
+int EPD_2in66_test(void);
+int EPD_2in66b_test(void);
+
+int EPD_2in7_test(void);
+int EPD_2in7_V2_test(void);
+
+int EPD_3in7_test(void);
+
+int EPD_4in2_test(void);
+int EPD_4in2_V2_test(void);
+int EPD_4in2b_V2_test(void);
+int EPD_4in2b_V2_test_old(void);
+
+int EPD_5in65f_test(void);
+
+int EPD_5in83_V2_test(void);
+int EPD_5in83b_V2_test(void);
+
+int EPD_7in5_V2_test(void);
+int EPD_7in5_V2_test_old(void);
+int EPD_7in5b_V2_test(void);
+int EPD_7in5b_V2_test_old(void);
+
+#endif

lib/Pico_ePaper_Code/c/examples/ImageData.h

@@ -0,0 +1,83 @@
+/*****************************************************************************
+* | File      	:   ImageData.h
+* | Author      :   Waveshare team
+* | Function    :	
+*----------------
+* |	This version:   V1.0
+* | Date        :   2018-10-23
+* | Info        :
+*
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+******************************************************************************/
+
+#ifndef _IMAGEDATA_H_
+#define _IMAGEDATA_H_
+
+extern const unsigned char flagimage[];
+
+extern const unsigned char gImage_2in13_2[];
+extern const unsigned char gImage_2in9[];
+extern const unsigned char gImage_2in9_4gray[];
+extern const unsigned char gImage_2in9bc_b[];
+extern const unsigned char gImage_2in9bc_ry[];
+
+extern const unsigned char gImage_2in13[];
+extern const unsigned char gImage_2in13b_V4b[];
+extern const unsigned char gImage_2in13b_V4r[];
+extern const unsigned char gImage_2in13b_b[];
+extern const unsigned char gImage_2in13b_r[];
+extern const unsigned char gImage_2in13c_b[];
+extern const unsigned char gImage_2in13c_y[];
+extern const unsigned char gImage_2in13d[];
+
+extern const unsigned char gImage_2in66[];
+extern const unsigned char gImage_2in66br[];
+extern const unsigned char gImage_2in66bb[];
+
+extern const unsigned char gImage_2in7[];
+extern const unsigned char gImage_2in7b_Black[5808];
+extern const unsigned char gImage_2in7b_Red[5808];
+extern const unsigned char gImage_2in7b_Black_V2[5808];
+extern const unsigned char gImage_2in7b_Red_V2[5808];
+extern const unsigned char gImage_2in7_4Gray[];
+extern const unsigned char gImage_2in7_4Gray_1[];
+
+extern const unsigned char gImage_4in2[];
+extern const unsigned char gImage_4in2_4Gray[];
+extern const unsigned char gImage_4in2_4Gray1[];
+extern const unsigned char gImage_4in2bc_b[];
+extern const unsigned char gImage_4in2bc_ry[];
+
+extern const unsigned char gImage_5in65f[];
+
+extern const unsigned char gImage_5in83_V2[];
+extern const unsigned char gImage_5in83b_V2_b[];
+extern const unsigned char gImage_5in83b_V2_r[];
+
+extern const unsigned char gImage_7in5_V2[];
+extern const unsigned char gImage_7in5_V2_b[];
+extern const unsigned char gImage_7in5_V2_ry[];
+
+#endif
+/* FILE END */
+
+

lib/Pico_ePaper_Code/c/extra_uf2/Readme.txt

@@ -0,0 +1,6 @@
+English:
+This directory holds our pre-compiled sample programs. 
+You can use them for evaluation if you have trouble setting up your environment.
+
+中文：
+本目录存放的是我们预先编译好的示例程序。如果您在环境搭建时遇到了麻烦，可以使用它们进行评估。