Cessna C172 Compass

This is the copy of the Cessan C172SP compass that I make for my Home Cockpit (here you can see some pictures of the cockpit: https://www.dropbox.com/sh/h90vffkas7392ht/AAD60eFejPBNdhhoG3ClNRbfa?dl=0).
For the movement I used a 24BJY48 stepper motor, with Arduino Mega.
In the frame I realized a slot for glue a withe led of 5mm.
Fot the back cover I realized two version, one with the socket for the controller of the stepper motor (if you want to put the board inside the compass) and one witho