Toby Chui
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init
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vor 6 Jahren | |
|---|---|---|
| .. | ||
| README.md | vor 6 Jahren | |
| component.mk | vor 6 Jahren | |
| esp-epaper-29-ws.c | vor 6 Jahren | |
| imagedata.c | vor 6 Jahren | |
| imagedata.h | vor 6 Jahren | |
README.md
Example: e-paper dispalys
This test code shows how to use ESP32 driver e-Paper displays
- Support for Waveshare 2.7inch e-Paper HAT based ePaper modules in 4-wire SPI mode
e-paper functions:
Graphics drawing functions:
- Paint_Clear Clear all screen memery
- Paint_DrawAbsolutePixel This draws a pixel by absolute coordinates
- Paint_GetImage Getters and Setters
- Paint_SetRotate Setup displays rotate
- Paint_DrawPixel Draws a pixel by the coordinates
- Paint_DrawCharAt Draw a charactor on the frame buffer but not refresh
- Paint_DrawStringAt Displays a string on the frame buffer but not refresh
- Paint_DrawLine Draws a line on the frame buffer
- Paint_DrawHorizontalLine Draw a horizontal line on the frame buffer
- Paint_DrawVerticalLine Draw a vertical line on the frame buffer
- Paint_DrawRectangle Draws a rectangle
- Paint_DrawFilledRectangle Draws a filled rectangle
- Paint_DrawCircle Draws a circle
- Paint_DrawFilledCircle Draws a filled circle
Fonts:
- Support for font8,font12,font16,font20,font24, fonts embeded
- Support for font8,font12,font16,font20,font24, fonts embeded
String write function:
- EPD_print Write text to display.
Images:
- Can display the image form C array
Connecting the display
- mosi: 23 (display DIN)
- sck: 18
- CS: 5 (display CS)
- DC: 26 (display DC)
- RST: 27 (display RESET)
- BUSY: 32 (display BUSY output)
How to build
make menuconfig
Make and flash the example.
make all && make flash
Test:
- Dispaly espressif logo for 2s
- display the random value on e-paper, refresh 5s