Epaper display from Waveshare: wave4i7color 4.01 inches

Resolution

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Cale-idf classname:

640x400

12 Millis
88 x 55 mm
0
wave4i7color

Description

This class is only supported for now in our own Firmware Cale-idf. Controller: SPD1656 This resolution works in the Waveshare 4.01 inches 7 colors epaper
Using our example cale-7-color.cpp in Cale-idf component is possible to print a colorful photo. The best output settings for color pictures for cale.es backend are:
Dithering active with 3x3 mode. Bits per pixel: 24. Note that dithering downgrades the 24 bpp to 4 only but that is ok since with 4 bits per pixel you have 16 colors that is more than the epaper can support. It's not an optimal color picture but is fun and good enough to use as a photo-frame.


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Please check our Arduino esp32 C++ Firmware for Epaper to use the image provided with CALE in your ESP32 SPI display. If you want to build a custom Firmware using Espressif IDF own framework we highly recommend to check our project Cale-Idf.