Uses a circuit python powered itsy bitsy M4 and a esp32 WiFi co processor. It functions as a very tiny server and runs in access point mode, so you control it by connecting to it's WiFi and running a web app making http calls.

Web app does the hard work of converting any selected image from your phone into a bmp of the appropriate size, which the file data can then be sent over http to the board and saved to disk, and then later displayed.