A few buttons on a ‘Pi can probably be directly connected, one for one, to GPIO pins. A mechanical keyboard is going to require a few more pins and probably some sort of matrix scanner.

Matrix keyboards ... Theoutput of the keyboard is OR’ed andconnected to an external interrupt pinof the MCU. An interrupt occurs only if a buttonpressed when both the row and the column of the ...

Asus calls this tech the AniMe Matrix ... keyboard didn’t include a diffuser that gives it a colorful underglow. 8000Hz polling Media controls, which take the shape of a knob, scroll wheel, and ...