A simple two part case for a 4.2 inch epaper display, ESP32 board, and Lipo battery. The USB connector is sunk in because on the ESP32 board I'm using, a "WEMOS LOLIN32 ESP32 Lite", the Lipo connector (for some silly reason) faces the same way as the USB C socket.
The specific display I've used is a "Best 4.2inch E-paper Display Module 400x300".
Self tapping M3 screws are used to hold the top on.
Software is a hackjob using ESPHome. If anyone is interested in the code please let me know in the comments.
The author marked this model as their own original creation. Imported from Thingiverse.