Replacement atmega32u4 microcontroller for the 4-rotary button box.

Brand new, programmed up atmega32u4 for use in my button box controller:

Soldered legs, drop in replacement. Carefully ease out your original microcontroller from the socket on the main controller board, edging out one side and then the opposite until loose. This new one will push in snugly, but check all the legs are in the sockets before applying gentle force to seat correctly. The micro will fit both ways around on the board, but only work with the USB connector facing the top as per your original. If you insert the microcontroller the wrong way around, it will break - the power will be applied to the wrong pins.

This atmega32u4 can be reprogrammed for anything you wish if you decide not to purchase for the button box controller.

(If you need a replacement for the 2-rotary controller, please contact me before purchasing)