Case for matrix led MAX7219

A cover that can be hung on the wall or placed on a table. Inside is a board that holds the ESP8266. The board needs to be slightly sanded on the side so that it sits there. The back cover is held by 4 M3 screws and there are wall mounts. The design requires 8 pieces of M3 threaded inserts. Printed from PLA. First layer 0.2 mm, infill 10%. Happy printing.