[dadadad100]

They missed that IKEA has just released a new smart home suite including a motion/light sensor for $9.99 [1]. Full thread/matter support and some also have zigbee to maintain backwards compatibility to legacy IKEA stuff.

I’m migrating from my zigbee stuff bridged through home assistant to HomeKit. Now I have thread to HomeKit directly

[1] https://www.ikea.com/us/en/p/myggspray-wireless-motion-senso...

[micromacrofoot]

Keep in mind that often motion sensing isn't what someone wants... great for hallways, doorways, and transitional space where someone is expected to be moving, but not great if you're going to be sitting for a bit. Presence sensing is a little more expensive but has gotten a lot better (millimeter wave stuff), great for something like a bathroom or kitchen where you might be sitting for a while but still want the lights on.

[Larrikin]

MmWave is getting cheaper but it can still be cheaper to use a regular motion sensor combined with a door sensor. This won't work for the living room, but I've found the bee in box setup to work perfectly for the bathroom. You trigger lights on when you enter and lights off when you re open the door instead of waiting for the motion sensor cool down.

[sdsdssweew213]

Aliexpress also sells bunch of no-name Zigbee motion sensors, proximity sensors to detect if door/window or whatever is open, which work with Home Assistant through Zigbee2Mqtt. I tried some with good reviews and found them to work allright.

[tonoto]

I get that it is a cheaper solution, but how pleased are you with responsiveness and reliability of the IKEA stuff?

[avgDev]

Their auto blinds were awful. Original warranty was 10 years, they were so unreliable they shortened the warranty and after replacing 2 of my blind told me this is it. So when my blind goes bad again I'm going to have to fight with the manager.

[pickdan]

I recently tested all the IKEA matter devices, and running the latest firmware I find that the latency on the motion sensor is quite high and the detection range significantly changes based on the orientation of the sensor which is unusual. Overall the devices are good value, but I'd avoid the motion sensor at the moment.

[dadadad100]

Based on two days with the motion sensor the responsiveness feels very good. The reduction in hops may be the key there. It’s too early to tell about the connection reliability but I’ve been using IKEA zigbee stuff for years with no issues. The build quality of the sensor and their new switches is very high.