There’s so many cool little door sensor hacks floating around that I thought it might be useful to have a meta thread? Like this one. . I really like the Aqara ones, which are small, cheap, and reliable in my experience. I’ll add the one’s I know about, and add one I’m just playing with. Chair Occ…

[image] umbrella_with_rain_drops DIY Zigbee rain gauge Share your Projects! Rain has never been more exiting Last updated: December 2025 Sensor has been running on the same battery since December 2020 Today I want to share with you how I made a wireless batte…

[image] DIY Zigbee Water Level Sensor Share your Projects! So after reading some other users posts about Diy Zigbee sensors using the aqara door/window sensors I started thinking about what else I could do with one. Initially nothing crossed my mind until the water top of …

Does it have to be Aqara based? I have an old Qurky tripper that I use as a loss of power to the house sensor and a Zwave sensor attached to my kiddie interconnected smoke alarms. Both of these could easy be used with an Aqara sensors though.

I’m using one with an FSR for bed presence detection. [image] FSR - the best bed occupancy sensor Share your Projects! Thanks for the project idea, I just finished mine up and installed it this morning. I’m trying to keep everything zigbee so went with an aqara door sens…

Using a door sensor to detect door bell / chime with mechanical ding-dong strikes: [image] Contact Sensor for Doorbell Hardware Sorry about the bad picture… only had a minute… there is no wiring involved… the one contact sensor sits on top for the side door and The zwave …

I reckon whatever brand. I’ve adjusted to title to reflect. I “kind of” get your examples, but I suspect if you elaborate a little more, others may replicate your success;) Thanks.

Power loss sensor setup Door/window sensor of your choice 5v usb power supply USB cable you can cut or is damaged 5vdc single pole relay ( https://a.co/0C8jUhC ) Maker box or something to hold the relay Soldered wires to each side of the reed switch of the sensor and attached those to the Normal…

@Cbarth3 thanks for sharing this sweet setup. I was thinking about just this same sort of thing in order to get an instant power off trigger in HA, especially for the blips of outage that happen in storms at night.

Kidde smoke alarm interconnect sensor I made this when I first had Wink, moved it over to SmartThings, and now have it in Home Assistant. Kidde SM120X Interconnect Accessories Smoke Relay Module https://a.co/hov76Yx I would imagine there is a first alert version also. Door/window sensor of your …

@Cbarth3 just ordered my parts for this project on AliExpress for cheap and will be tackling this when the items arrive. Is there any reason that you didn’t put the door/window sensor inside the project box?

A list of door sensor / reed sensor hacks! (Aqara, Xiaomi, others)

Share your Projects!

k8gg July 26, 2022, 9:28am 6

Using a door sensor to detect door bell / chime with mechanical ding-dong strikes: