Just like my little doorbell project I used a Xiaomi Aqara door/window sensor to build a cheap watersensor. Because I have mainly Xiaomi aqara Zigbee stuff (25 sensors en power plugs and switches) I wanted to build a cheap Zigbee watersensor. I removed the small glass tube with the magnetic contact from the Aqara sensor and connected a wire to both soldering point. I already had a 433mhz watersensor that I dit not use anymore so I used the cable and the sensor to connect these to the soldering points of the removed glass tube. Works great!
Do you have a modified device handler to share that shows wet/dry instead of open/close?
Hi Jimmy,
No, that’s a minor detail. Only Open/Close message. But it’s enough to give an alert.
Not minor when you can then tie it into smart Home Monitor for other actions like closing valves. Pretty easy to do.
Check out this code for how to swap contact capability for moisture capability
hi jimmy, i’ve done a similar water sensor using aqara water leak but it works in reverse mode (wet when don’t rain and dry when it’s raining ) cause the watersensor it’s normally closed. there’s a way to reverse the contact of the aqara? a modified dh/edge
thank you
if you already spend so much effort to hack 15$ sensor , you can fork edge sensor driver and change the messages to wet/dry .