This keyboard adapter applies to GK68 released by Skyloong. The adapter internally converts to thumb shift and sends the Roman code to the computer.

The adapter's firmware is based on hoboNicola and has been modified to suit the operation of the GK68 Lite / GK68X. Since this keyboard has split space bar, it is very suitable for nicola japanese input method. Testing is performed using Microsoft's MS-IME.

[CAUTION]

Be sure to disconnect the miniUHS module's VBUS pattern from 3.3V. Please refer to the posted photos.

[Note]

XIAO SAMD21 has a RST pad instead of a reset pin. Reset SW SW1 connects to the RST pad via J3, but this is not necessary. If not connected, short the solder jumper JP2 and pull-up with R1 (10kohm).

This project only supplies the PCB and has nothing to do with the firmware developers. The firmware is released under the GPL license.