This is the microcontroller board used in the Keyball series.
It is also used in many other custom keyboard kits.
Two are required for the left and right sides to be installed in the Keyball series.
・ATmega32U4-MU ・5V/16MHz
※Please note that the USB Type-C version has a PCB that is about 2mm longer on the USB connector side. It can be used with the Keyball series without interference or protrusion.
※The pin headers included with the ProMicro are not used for assembling the Keyball series.
