IKEA TIMMERFLOTTE humidity/temperature sensor

Ikea TIMMERFLOTTE in HA, side-by-side comparison with Shelly BLU H&T. Hi all! Following up on my post on the Ikea ALPSTUGA, I also wanted to leave a quick review of using the new Ikea TIMMERFLOTTE Humidity and Temperature sensor in HA, with a side-by-side comparison with a similar device, in this case the Shelly BLU H&T. First of all, the TIMMERFLOTTE comes in a small package with only the device and a quick start guide. The only mounting option is a small "keyhole slot" on the back of the device, no adhesive pads or magnets are provided; I really whish a magnet was provided as I'd really …

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

Disagree. It's gotta be your network settings. I am using 91 Ikea Matter over Thread devices, Dirigera as the only TBR and all devices are shared individually, one by one using multi-admin codes into HA's Matter.js server. None of my devices other than 6 Timmerflottes ever drop offline. Everything else is now pretty much rock solid and stays connected. That was not always the case and before the most recent firmware updates many of my Bilresas were not reliably. Now with 1.9.15 they are solid. Maybe I'm just lucky but I really love yhd Ikea stuff. And to be clear, my home network also has …

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

My experience with matter is quite negative so far. I have a dirigera gateway and a few timmerflotte sensors. It originally worked fine, until I swapped a SIM card in my 5G router. Since then I can’t see these sensors in Apple Home and I can’t pair it again with HA. I suspect my new operator doesn’t use ipv6, but I tried switching between dhcp and slaac but nothing helps. Maybe a router update also broke something. I gave up for now, I shouldn’t be a network engineer to read a room temperature.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.