All split keyboards I’m aware of connect the halves with 3.5mm TRRS jacks, if not wireless. QMK and ZMK boards alike. Why is that?
All split keyboards I’m aware of connect the halves with 3.5mm TRRS jacks, if not wireless. QMK and ZMK boards alike. Why is that?
Zmk uses i2c - I would guess qmk as well, but I wouldn’t know