This is a library for the Waveshare 2.9" e-Paper display. The library allows you to type strings, draw rectangles, and display images directly to the display while handling the nitty-gritty bit-manipulations involved in moving the data into the correct memory address of the buffer. When calling printf, showImg, or drawRect, remember to call updateScreen() afterwards to actually implement the changes.
Please note this library has only been tested with an ESP-32 running Arduino.
The orientation of the screen and its origin are as follow
This configuration can be changed in epdif.cpp
3.3V/5V --> 3V3
GND --> GND
DIN --> MO
CLK --> SCK
CS --> 14
DC --> 33
RST --> 27
BUSY --> 13
| Name | Description |
|---|---|
| VCC | 3.3V/5V |
| GND | GND |
| DIN | SPI MOSI |
| CLK | SPI SCK |
| CS | SPI chip select (Low active) |
| DC | Data/Command control pin (High for data, and low for command) |
| RST | External reset pin (Low for reset) |
| BUSY | Busy state output pin (Low for busy) |