GxEPD2_32
Simplified Version of GxEPD for 32 Bit Arduino
for SPI e-paper displays from Dalian Good Display
and SPI e-paper boards from Waveshare
important note :
- these displays are for 3.3V supply and 3.3V data lines.
- never connect data lines directly to 5V data pins.
- this version will not compile for or run on AVR Arduino.
Paged Drawing, Picture Loop
- This library uses paged drawing to limit RAM use and cope with missing single pixel update support
- buffer size can be adapted in the header files if needed; original value should be ok for normal use
- Paged drawing is implemented as picture loop, like in U8G2 (Oliver Kraus)
- see https://github.com/olikraus/u8glib/wiki/tpictureloop
Supporting Arduino Forum Topics:
- Waveshare e-paper displays with SPI: http://forum.arduino.cc/index.php?topic=487007.0
- Good Dispay ePaper for Arduino : https://forum.arduino.cc/index.php?topic=436411.0
Version 1.0.11
- GxEPD2_32_Spiffs_Example, GxEPD2_32_Spiffs_Loader for ESP32
Version 1.0.10
- bitmap handling fixes
Version 1.0.9
- GxEPD2_32_SD_Example & GxEPD2_32_WiFi_Example for ESP32
Version 1.0.8
- interim update with fixes & enhancements to 1.0.7 & 1.0.6
- renamed GxEPD2_32_SD_BitmapExample to GxEPD2_32_SD_Example
- GxEPD2_32_WiFi_Example and GxEPD2_32_Spiffs_Loader have download issue with big downloads
Version 1.0.7
- added GxEPD2_32_Spiffs_Example
- added GxEPD2_32_Spiffs_Loader
- added GxEPD2_32_WiFi_Example
Version 1.0.6
- added GxEPD2_32_SD_BitmapExample
Version 1.0.5
- update and fix for additions of version 1.04
Version 1.0.4
- Support for Bitmaps (Sprites) to Controller Buffer and to Screen
- the bitmaps can reside in RAM or ROM, parameter pgm, default RAM
- origin x and width should be multiple of 8, are rounded down
- cropping to screen dimensions is handled
- allows tiled drawing for bitmaps from SD, SPIFFS or WiFi download
- use e.g. writeImage(...) for each tile, followed by refresh() for all
Version 1.0.3
- support for GDEW075Z09 7.5" 3-color moved to GxEPD2_32_3C
- not tested by me, but one user reported succesful use
- NOT RECOMMENDED, as it has extremely long refresh time reported
Version 1.0.2
- additional font support, e.g. from https://github.com/olikraus/U8g2_for_Adafruit_GFX
Version 1.0.1
- Example Bitmaps & 4.2" b/w fast partial update