felixrosbergen
Senior Member
Hi all,
My garage door is a new 'liftmaster'. The wall control has 3 buttons (Open/Close, Light, Lock)..however there's only 2 wires going to the control. This must mean that there is some sort of protocol that the keypad unit used to communicate with the motor unit. Either that or different voltage levels or something.
Anybody integrated a liftmaster unit? This doesnt appear to be as simply as putting a relay in parallel to the button between the 2 wires.
My garage door is a new 'liftmaster'. The wall control has 3 buttons (Open/Close, Light, Lock)..however there's only 2 wires going to the control. This must mean that there is some sort of protocol that the keypad unit used to communicate with the motor unit. Either that or different voltage levels or something.
Anybody integrated a liftmaster unit? This doesnt appear to be as simply as putting a relay in parallel to the button between the 2 wires.