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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
- works with Particle Build WEB-IDE and Particle CLI command line tool
- only use was to analyze issues with Particle Desktop IDE
- PxEPD2_Example also works with Particle Desktop IDE
- these displays are for 3.3V supply and 3.3V data lines.
- never connect data lines directly to 5V data pins.
- 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
- preliminary version
- based on GxEPD2 Version 1.1.0
- example PxEPD2_Example has a project local library to analyze a Desktop IDE issue