single repo

CMakeLists.txt

@@ -35,11 +35,17 @@ pico_sdk_init()
 
 # Add executable. Default name is the project name, version 0.1
 
-if (TARGET tinyusb_device)
+if (TARGET tinyusb_host)
             add_executable(hello_usb
                 hello_usb.cpp
                 display.cpp
                 commands/echo.cpp
+                keyboard_input.cpp
+                command_processor.cpp
+                epaper_manager.cpp
+                wifi_manager.cpp
+                tcp_debug.cpp
+                keyboard_stdio.cpp
                 )
 
     add_subdirectory(pico-ssd1306 commands)
@@ -50,6 +56,7 @@ if (TARGET tinyusb_device)
 
     # Add include directories for e-Paper
     target_include_directories(hello_usb PRIVATE 
+        ${CMAKE_CURRENT_SOURCE_DIR}
         ${CMAKE_CURRENT_SOURCE_DIR}/Pico_ePaper_Code/c/lib/Config
         ${CMAKE_CURRENT_SOURCE_DIR}/Pico_ePaper_Code/c/lib/e-Paper
         ${CMAKE_CURRENT_SOURCE_DIR}/Pico_ePaper_Code/c/lib/Fonts
@@ -57,11 +64,11 @@ if (TARGET tinyusb_device)
     )
 
     # pull in common dependencies
-    target_link_libraries(hello_usb pico_stdlib pico_ssd1306 hardware_i2c Config ePaper GUI Fonts hardware_spi pico_multicore)
+    target_link_libraries(hello_usb pico_stdlib pico_ssd1306 hardware_i2c Config ePaper GUI Fonts hardware_spi pico_multicore pico_flash tinyusb_host tinyusb_board pico_cyw43_arch_lwip_threadsafe_background)
 
     # enable usb output, disable uart output
-    pico_enable_stdio_usb(hello_usb 1)
-    pico_enable_stdio_uart(hello_usb 0)
+    pico_enable_stdio_usb(hello_usb 0)
+    pico_enable_stdio_uart(hello_usb 1)
 
     # create map/bin/hex/uf2 file etc.
     pico_add_extra_outputs(hello_usb)

DISPLAY_REFRESH.md

@@ -0,0 +1,84 @@
+# Display Refresh Mechanism
+
+This document explains the dual-core architecture used to handle USB keyboard input and e-Paper display updates efficiently on the Raspberry Pi Pico.
+
+## Architecture Overview
+
+The system utilizes both cores of the RP2040 to ensure that the slow refresh rate of the e-Paper display does not block or lag the USB keyboard input.
+
+### Core 0: Input Handling (Producer)
+
+*   **Role:** Handles USB Host tasks, processes keyboard reports, and manages the text buffer.
+*   **Behavior:**
+    1.  Receives key presses via TinyUSB callbacks.
+    2.  Updates the local text buffer (`g_entry_list`).
+    3.  Triggers a display update via `send_display_update()`.
+*   **Non-Blocking Transmission:**
+    *   When an update is needed, Core 0 allocates a `DisplayMessage` on the heap.
+    *   It attempts to push the message pointer to the Multicore FIFO.
+    *   **Critical Optimization:** It uses `multicore_fifo_wready()` to check if the FIFO has space.
+        *   **If Ready:** Pushes the message.
+        *   **If Full:** Immediately frees the message and skips the update. This ensures Core 0 never waits for Core 1, keeping typing responsive.
+
+### Core 1: Display Driver (Consumer)
+
+*   **Role:** Manages the e-Paper hardware and performs the actual drawing operations.
+*   **Behavior:**
+    1.  Initializes the e-Paper display.
+    2.  Waits for messages in the Multicore FIFO.
+*   **Smart Refresh (Accumulation):**
+    *   When Core 1 wakes up to process a message, it first checks if *more* messages have arrived while it was sleeping or busy.
+    *   **FIFO Draining:** It loops through the FIFO, popping and freeing all intermediate messages, keeping only the **latest** one.
+    *   This ensures that if the user types "Hello World" quickly, Core 1 might skip rendering "Hello " and jump straight to rendering "Hello World", preventing a queue of obsolete updates from slowing down the display.
+
+## Data Flow Diagram
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant Core0 as Core 0 (USB/Input)
+    participant FIFO as Multicore FIFO
+    participant Core1 as Core 1 (Display)
+
+    User->>Core0: Types 'A'
+    Core0->>FIFO: Push Msg('A')
+    
+    User->>Core0: Types 'B'
+    Core0->>FIFO: Push Msg('AB')
+    
+    Note over Core1: Busy refreshing...
+    
+    User->>Core0: Types 'C'
+    alt FIFO is Full
+        Core0->>Core0: Drop Msg('ABC') (Free memory)
+    else FIFO has space
+        Core0->>FIFO: Push Msg('ABC')
+    end
+
+    Core1->>FIFO: Pop Msg('A')
+    Note over Core1: Checks FIFO for newer msgs
+    FIFO->>Core1: Msg('AB') exists
+    Core1->>Core1: Free Msg('A'), use Msg('AB')
+    
+    FIFO->>Core1: Msg('ABC') exists
+    Core1->>Core1: Free Msg('AB'), use Msg('ABC')
+    
+    Core1->>Display: Render('ABC')
+```
+
+## Key Functions
+
+*   **`send_display_update(const char *entry, bool finish_line)`**: 
+    *   Allocates memory.
+    *   Checks FIFO status.
+    *   Pushes or drops message.
+*   **`core1_display_init()`**: 
+    *   Main loop for Core 1.
+    *   Drains FIFO to find the latest message.
+    *   Calls e-Paper drawing functions.
+
+## Memory Management
+
+*   Messages are `malloc`'d by Core 0.
+*   Messages are `free`'d by Core 1 (after processing or dropping).
+*   If Core 0 drops a message because the FIFO is full, it `free`s it immediately.

Pico_ePaper_Code/.gitignore

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

Pico_ePaper_Code/LICENSE

@@ -0,0 +1,674 @@
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+
+  Nothing in this License shall be construed as excluding or limiting
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+
+  12. No Surrender of Others' Freedom.
+
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+
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+
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+
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+
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+free software which everyone can redistribute and change under these terms.
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+    (at your option) any later version.
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+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+  If the program does terminal interaction, make it output a short
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+    <program>  Copyright (C) <year>  <name of author>
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+
+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".
+
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+if any, to sign a "copyright disclaimer" for the program, if necessary.
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+<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
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+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

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

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。

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.

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)

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;

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.

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)

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 65, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 65, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 65, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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, "<22><><EFBFBD><EFBFBD>abc", &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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &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;
+}
+

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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(5, 60,"΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &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;
+}
+
+

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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(10, 130, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}

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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(10, 130, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}

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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(150, 80, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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;
+}
+

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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;
+}
+

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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;
+}
+

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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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, "<EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(140, 40, "<EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(140, 80, "<EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(140, 120, "<EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY4, GRAY1);
+	
+    Paint_DrawString_CN(220, 0, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &Font24CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(220, 40, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &Font24CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(220, 80, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &Font24CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(220, 120, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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;
+}
+

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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;
+}
+

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, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_BLACK, WHITE);
+	Paint_DrawString_CN(10, 140, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_GREEN, WHITE);
+	Paint_DrawString_CN(10, 160, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_BLUE, WHITE);
+	Paint_DrawString_CN(10, 180, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_RED, WHITE);
+	Paint_DrawString_CN(10, 200, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_ORANGE, WHITE);
+	
+	Paint_DrawString_CN(150, 0, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, WHITE, BLACK);
+	Paint_DrawString_CN(150, 40, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, EPD_5IN65F_GREEN, BLACK);
+	Paint_DrawString_CN(150, 80, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, EPD_5IN65F_BLUE, BLACK);
+	Paint_DrawString_CN(150, 120, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, EPD_5IN65F_RED, BLACK);
+	Paint_DrawString_CN(150, 160, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &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, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_BLACK, WHITE);
+			Paint_DrawString_CN(10, 140, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_GREEN, WHITE);
+			Paint_DrawString_CN(10, 160, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_BLUE, WHITE);
+			Paint_DrawString_CN(10, 180, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_RED, WHITE);
+			Paint_DrawString_CN(10, 200, "<EFBFBD>A<EFBFBD>nabc", &Font12CN, EPD_5IN65F_ORANGE, WHITE);
+			
+			Paint_DrawString_CN(150, 0, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, WHITE, BLACK);
+			Paint_DrawString_CN(150, 40, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, EPD_5IN65F_GREEN, BLACK);
+			Paint_DrawString_CN(150, 80, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, EPD_5IN65F_BLUE, BLACK);
+			Paint_DrawString_CN(150, 120, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &Font24CN, EPD_5IN65F_RED, BLACK);
+			Paint_DrawString_CN(150, 160, "<EFBFBD>L<EFBFBD><EFBFBD>?<3F>l", &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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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;
+}
+

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, " <20><><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY4, GRAY1);
+    Paint_DrawString_CN(150, 20,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY3, GRAY2);
+    Paint_DrawString_CN(150, 40,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY2, GRAY3);
+    Paint_DrawString_CN(150, 60,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, GRAY1, GRAY4);
+    Paint_DrawString_CN(10, 130, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc", &Font12CN, BLACK, WHITE);
+    Paint_DrawString_CN(130, 20, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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;
+}
+

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;
+}
+

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, "΢ѩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &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,"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>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_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;
+}
+

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

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 */
+
+

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。

Pico_ePaper_Code/c/extra_uf2/pico/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。