So as part of a house move, I inherited some PIR sensors already wired up throughout the house. I'd like to just connect these up to an ESP32 to make up a basic security system.
It has 6 wires... red and black +12v and GND, white and green tamper wires... and blue and yellow wires presumably for the output.
The ESPHome page for PIR only describes a single output, but I have two on these things.
I've just given it 5v power for now from the ESP32 board, and it has a flashing red LED. I'll ignore the tamper wires for the time being, but...
I'm not entirely sure what signals I'm getting out of those blue and yellow wires. I hooked them up to pins on the ESP32 and set them as binary sensor with device class: motion... just to see what they're doing.
They're both flickering between detected and clear, and waving my arms around in front of it doesn't seem to make a lot of difference. So... I'm not sure what they are.
Maybe they're outputting something specific to the original security panel?
Anyone have any idea what might be coming out of these? And ultimately, can I read them directly in HA somehow? 🤔