A simple E-Paper display library with common base class and separate IO class for Arduino.
The E-Paper display base class is a subclass of Adafruit_GFX, to have graphics and text rendering.
It needs roughly 20kB available RAM to buffer the black/white image for the SPI displays. ESP8266 or STM32 systems have just enough free RAM, e.g. Arduino Due, ESP8266 or STM32. I use it with Wemos D1 mini, STM32F103RB-Nucleo, and STMF103C8T6 (BluePill) systems.
Initial support is for E-Paper displays from Dalian Good Display Inc. with SPI:
GDEW042T2 4.2 inch 400 x 300 pixel black/white
GDEW075T8 7.5 inch 640 x 384 pixel black/white
Added GDEP015OC1 1.54 inch 200 x 200 pixel black/white (initial version, no partial update)
Added GDEW027C44 2.7 inch 176 x 264 pixel black/white/red
Added example IoT_SHT31LP_Example_1.54inchEPD
Added GDE0213B1 2.13 inch 128 x 250 pixel black/white
Added GDEH029A1 2.9 inch 128 x 296 pixel black/white
These display can be connected using the DESTM32-S2 connection board to power and SPI.
The GxGDEP015OC1 class can also be used with Waveshare 1.54inch e-Paper SPI display.
The GxGDE0213B1 class can also be used with Waveshare 2.13inch e-Paper SPI display.
The GxGDEH029A1 class can also be used with Waveshare 2.9inch e-Paper SPI display.
Preliminary support for partial update and paged drawing (AVR, low RAM), for test. To use on AVR (UNO, NANO) Arduino IDE 1.8.x is required (optimizing linker) for code space. Only for GxGDEP015OC1 and GxGDEH029A1 for now. More tests to be done; use cases?
Added support for HD E-Paper displays from Dalian Good Display Inc. with parallel interface.
GDE060BA 6 inch 800 x 600 pixel 4 gray level
GDEW080T5 8 inch 1024 x 768 pixel 4 gray level
These display can be used with the red DESTM32-L evaluation board, it has 1MB FSMC SRAM on board.
The library classes for these display can be used with the STM32GENERIC package for Arduino IDE.
Added GxGDE043A2 4.3 inch 800 x 600 pixel 4 gray level, with unresolved degradation issue