Ever since I moved into my co-op I wanted a way to upgrade the existing 4 wire apartment buzzer / intercom system to allow the outside door to be unlocked with my phone. I pulled the trigger on the SmartThings hub and a few add ons and I was thinking of ways to integrate the two together.
The device I was considering to make this possible is a Linear FS20Z-1
and I was looking to combine it with this:
I’m not an electrician but when I took the panel off it appears to be a 12v and three other wires, each one triggering an action using a momentary push button. What I’d like to do is wire in the Linear device which seems easy enough, power ground and neutral (which I’ll get from an outlet and a hacked PC power cord, then using the two “blue” wires, create a jumper from the 12v to the “door” button. Seems that the circuit will handle low voltage just fine from what I’m reading and it’s a simple normally open connection.
The app side of it seems simple, just a button to turn on the switch, put in a 5 second delay, and turn it back off.
Has anyone done something like this before? Do I have my thinking correct?