You can see it in the source: https://github.com/system76/launch/blob/master/pcb/launch-bom.csv https://github.com/system76/launch/blob/master/pcb/launch-bo...

You can see it in the source: https://github.com/system76/launch/blob/master/pcb/launch-bom.csv https://github.com/system76/launch/blob/master/pcb/launch-bo... I think it is a ATmega32U4-MU