This is an automated archive made by the Lemmit Bot.
The original was posted on /r/homeassistant by /u/maxi1134 on 2025-11-25 22:52:41+00:00.
It started with a dream; It ended with 95 feet of wire.
I always wanted a bed presence system; I ended up using a Everything Presence Lite, but still wanted more data points for my crazy automations.
This culminated in me and my buddy soldering and attaching 16 load cells to the bedframe itself, covering them with steel plates to distribute the weight and then putting the springbox and the matress on top.
Here, our legion of load cells!
The plan was simple, 4 zones of 4 load cells
Some steel in order to spread the weight over the load cells.
the 'box spring' on top of the steel to even further spread the weight. As each is only rated for 50kg.
Tons and tons of cables
All nicely tucked away!
https://preview.redd.it/vndum7w6gh3g1.jpg?width=1024&format=pjpg&auto=webp&s=6dd3065d1619f13ced8a9be6937eb46ca20bd21a
And bam! Ni vu, Ni connu! (Except for when you spot the white usb cable coming out of the bedframe ๐ซฃ)
Now for those wondering, here is the code used on my github. (As to not clog this post with 295 lines)
One thing I would redo better, for those wondering. Would be to put the load cells at the very end of the steel bars, instead of 2 inches inward. As now there is flex outside the 'sensing' zone.
P.S: I almost forgot the HA entity!
Yes, the playing thing is what you think; No, we don't need to discuss it furthermore. ๐
