I’m planning on building a new house in a year so I want to make sure I wire the home in the best way to work with HA. I want a sensor on every door, internal and external. My plan is to run wires to each door and homerun them to the basement utility room. I’m looking at using a magnetic switch like this.
I’ve heard in the past about using a DSC alarm wiring panel and being able to integrate that with HA but I haven’t seen much on that lately. I’m assuming I can use just about anything with some GPIO pins and can use MQTT, right? If I used a Node MCU with Tasmota, it looks like it would work with 10 sensors as it has 10 GPIO pins. Is my thinking correct? Is it jus a matter of grounding the GPIO pin (run one sensor wire to ground and the other to a GPIO pin?)
Is there a better way to do this that I’m not thinking about? I would probably have 30+ door sensors. I’d also like to integrate motion sensors in this way too, if possible. I’ll probably also run some wires for sirens. I’m thinking about using a 4ch Sonoff to fire those off.