Ahh got you. No the ignition sense is hardwired to the vehicle.
A battery line powers the xAC and the Seeeduino.
The ignition like just goes (not directly) to a digital input put to sense when it’s on.
Both are hardwired to the car.
The fob has it’s own discrete connections between the Seeeduino and the fob
- Lock: two wires, one for each side of the lock switch
- Unlock: two wires, one for each side of the lock switch
- Power: 2 wires, 3.3v and ground
Probably easier if I just upload this, it’s pretty rough though. Ignore the upper drawing.
Camaro Access Control Module.pdf (696.6 KB)