The ePaper AddOn tested with the ESP32 Board is here: https://github.com/ranseyer/MySensors-HW/tree/master/Experimental/ESP32/AddOn
The AddOn is for two types of smaller displays as well as optional sensors.
It is only tested with the ESP32 board. The goal would be to run it on ATMega, etc., too. Boards is running.
PS:I also have a few boards left, these are available on request. This is not a sales thread!