After installing the mpremote package (https://docs.micropython.org/en/latest/reference/mpremote.html), flash the Inputronic Keyboard module to the board using the following command:
mpremote mip install github:SolderedElectronics/Soldered-Micropython-modules/Communication/Inputronic-KEYBOARDOr, if you're running a Windows OS:
python -m mpremote mip install github:SolderedElectronics/Soldered-Micropython-modules/Communication/Inputronic-KEYBOARD