Gate Opener

 Gate Opener

Ladies and Gentlemen, Boys and Girls and for my next (first) trick I will open the gate with nothing but my mobile phone and maybe a microcontroller and relay or the like in the gate opener.

OK carrying a gate opening remote is a PITA. I don't drive most places, I uber or taxi or get a lift.

So I can't just leave a gate opener in the car's console, because chances are pretty good my partner will be in the car in a different location to me when I want to get in.

And the gate opener is too big to comfortably go in a pocket without getting damaged over time - ask me how I know.
So I want to add a "little something" - probaby an ESP32 or a Pi Zero or Pi Pico to open the gate for me.

I believe you can open the gate by applying a certain amount of voltage (I'm not being coy, I just can't rememeber the number off the top of my head) to a certain terminal on the gate opener controller.

So I think a Pi or and ESP 32 with a relay wired into a coupla GPIO pins should do the trick.

Worse case I take one of the old broken gate opening fobs - the battery doors break, the PCB should be fine still - take the PCB and replace the switches with a relay or a transistor, again wired to the GPIO ping of an ESP32 or a Pi etc.

Bung it on the IOT home network, write an app that can run in a container either in AWS as a Lambda function and Bob is your mother's bruvver - or so it has been alleged.

What say you? Seem feasable? Any one else done it who can tell me to do it better?

These are the fobs I would canabalise: https://www.aliexpress.com/item/1005008269545680.html