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With full Graphics and Text support using Adafruit_GFX (Adafruit_GFX_RK Version 1.3.5)
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For SPI e-paper displays from Dalian Good Display
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and SPI e-paper boards from Waveshare
- the display panels are for 3.3V supply and 3.3V data lines
- never connect data lines directly to 5V data pins.
- the actual Waveshare display boards now have level converters and series regulator, safe for 5V
- This library uses paged drawing to limit RAM use and cope with missing single pixel update support
- buffer size can be selected in the application by template parameter page_height, see GxEPD2_Example
- Paged drawing is implemented as picture loop, like in U8G2 (Oliver Kraus)
- see https://github.com/olikraus/u8glib/wiki/tpictureloop
- Paged drawing is also available using drawPaged() and drawCallback(), like in GxEPD
// GxEPD style paged drawing; drawCallback() is called as many times as neededvoid drawPaged(void (*drawCallback)(const void*), const void* pv)- paged drawing is done using Adafruit_GFX methods inside picture loop or drawCallback
- full screen buffer is selected by setting template parameter page_height to display height
- drawing to full screen buffer is done using Adafruit_GFX methods without picture loop or drawCallback
- and then calling method display()
- bitmap drawing support to the controller memory and screen is available:
- either through the template class instance methods that forward calls to the base display class
- or directy using an instance of a base display class and calling its methods directly
- 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
- GxEPD2 uses Adafruit_GFX for Graphics and Text support, which is well documented there
- GxEPD2 uses meaningful method names, and has some comments in the header files
- consult the header files GxEPD2_BW.h, GxEPD2_3C.h and GxEPD2_GFX.h
- for the concept of paged drawing and picture loop see:
- https://github.com/olikraus/u8glib/wiki/tpictureloop
- GDEP015OC1 1.54" b/w
- GDEW0154Z04 1.54" b/w/r 200x200
- GDE0213B1 2.13" b/w
- GDEH0213B72 2.13" b/w, replacement for GDE0213B1
- GDEH0213B73 2.13" b/w, new replacement for GDE0213B1, GDEH0213B72
- GDEW0213I5F 2.13" b/w flexible
- GDEW0213Z16 2.13" b/w/r
- GDEH029A1 2.9" b/w
- GDEW029T5 2.9" b/w
- GDEW029Z10 2.9" b/w/r
- GDEW026T0 2.6" b/w
- GDEW027C44 2.7" b/w/r
- GDEW027W3 2.7" b/w
- GDEW0371W7 3.7" b/w
- GDEW042T2 4.2" b/w
- GDEW042Z15 4.2" b/w/r
- GDEW0583T7 5.83" b/w
- GDEW075T8 7.5" b/w
- GDEW075Z09 7.5" b/w/r
- GDEW075Z08 7.5" b/w/r 800x480
- ED060SCT 6" grey levels, on Waveshare e-Paper IT8951 Driver HAT
- last version for GxEPD2_PP
- corresponds to GxEPD2 Version 1.2.0
- please use GxEPD2 for new projects
- added GxEPD2_PP_WiFi_Example, for bitmap download from web
- only download from http: works, would need help for https:
- only on GitHub, to avoid the need to increase the version for publish
- this is preliminary!
- corresponds to GxEPD2 Version 1.1.6
- added support for GDEH0213B72 2.13" b/w, replacement for GDE0213B1
- added support for GDEW029T5
- fixed (added) clipping for partial window
- fixed (added) powerOff() after full update (partial update keeps power on)
- added hibernate() for minimum power use by displays that support it
- retired, wrong dependency in GxEPD2_PP_Example
- fix drawImage(...) overloaded methods signature matching abiguity
- preliminary version
- preliminary version
- based on GxEPD2 Version 1.1.0