adolforeyna/eink-api
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adding inverted color commands

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aeroreyna
2026-01-09 10:48:27 -05:00
parent 1ce6e1adab
commit 7d3ae06e63
4 changed files with 195 additions and 9 deletions
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README.md
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@@ -28,6 +28,10 @@ cmake --build build
After building, flash the firmware to your Pico (e.g. by copying `build/eink_api.uf2` to the Pico's mass storage device or using `picotool load build/eink_api.uf2`).
### Build/Flash Helper Script
Run `scripts/flash_and_connect.sh [/dev/ttyACM0]` to configure CMake, compile the firmware, optionally flash it with `picotool`, and open a serial session (defaults to `screen` at 115200 baud). Set `PICO_SERIAL` to override the port, `PICO_BAUD` for a different baud rate, and `SERIAL_CLIENT` if you prefer `picocom` or `minicom`. If `picotool` is missing, the script will remind you to copy the UF2 to the board manually.
## Usage
1. Open a serial terminal (115200 baud) over the Pico's USB CDC interface.
@@ -44,14 +48,18 @@ After building, flash the firmware to your Pico (e.g. by copying `build/eink_api
| `display` | Pushes the framebuffer to the panel (requires display on). |
| `draw_test` | Draws a hard-coded Waveshare demo pattern. |
| `draw_text x y text` | Writes `text` at `(x,y)` using the current font. |
| `draw_text_white x y text` | Writes inverted white text at `(x,y)` with a black background. |
| `draw_point x y` | Draws a black point at the given coordinates. |
| `draw_line x1 y1 x2 y2` | Draws a black line between two points. |
| `draw_sine x y length amplitude frequency` | Draws a sine-wave curve of `length` pixels starting at `(x,y)`, oscillating by `amplitude`, with the given number of cycles. |
| `draw_rectangle x1 y1 x2 y2` | Draws an empty rectangle. |
| `draw_rectangle_fill x1 y1 x2 y2` | Draws a filled rectangle. |
| `draw_circle x y r` | Draws an empty circle with radius `r`. |
| `draw_circle_fill x y r` | Draws a filled circle with radius `r`. |
| `draw_num x y num` | Draws `num` using the default numeric font. |
| `set_pixel x y color` | Sets a single pixel to `color` (0=white, 1=black). |
| `close` | Sends the panel to deep sleep and frees the framebuffer. |
| `editor` | Enables editor mode; text typed is rendered live on-screen until inactivity. |
| `editor [0|1]` | Enables editor mode; default uses white background, non-zero switches to white text on black. |
## Notes