E-paper component driver for the ESP-IDF framework and compatible with ESP32 / ESP32S2 can be found in this repository:
https://github.com/martinberlin/CalEPD
Codenamed Cal e-pe-de for the initials of E-Paper Display this is basically all what I’ve been doing the last weeks. Learning more about C++ object oriented coding and preparing a class that can be used to send graphic Buffers to different epaper displays. In order to do that I’m documenting on the go and building at the same time CALE-IDF that is our Firmware version for CALE.es but this time built on top of the Espressif IoT Development Framework (IDF)
The mission of this new component is to have a similar library for ESP-IDF that is easier to understand. If possible strictly meeting these requirements:
- Extendable
- Maintainable
- Object-Oriented Programming with human-readable code and function names
- Easy to add a new Epaper display drivers
- Easy to implement and send stuff to your Epaper displays
- Human-understandable
- Well documented
- ESP-IDF only (No Arduino classes)
Please find here the Wiki with the models that are already supported in the component:
https://github.com/martinberlin/cale-idf/wiki
Leave us a note if you want to try this. We can guarantee that for big epaper displays (>=400 pix. wide) it runs faster than GxEPD also supporting Adafruit GFX fonts and geometric functions. If you tried and it worked out for you please don’t forget to add a ✰ Star and spread the idea.
Our CALE Firmware to render BMP images on the epaper display also got an ESP-IDF version:
http://cale.es/firmware-idf
And it’s of course using CalEPD as epaper component :)