Matter - smart home connectivity standard (formerly Project CHIP)

Devices & Integrations
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Read at reddit, there’s an FCC certification for IKEA’s first Matter over Thread product, TIMMERFLOTTE temperature and humidity sensor.

That also means the DIRIGERA will finally get the Thread border router features enabled.

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Next step: Matter switch driver is getting fan support:

With fanMode and fanSpeedPercent capabilities. Fans are usually handled by the Matter thermostat driver, but since there are devices with lights and fan components, the switch driver must support fans…

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I just posted this in another topic with regard to a specific question, but I thought it was worth posting here as well.

LOTS of reports on pretty much every platform that has a matter controller for thread that multi admin is just not very stable at the present time. It’s a serious enough problem that the matter group is looking at ways to improve it. But for now, if your matter over thread devices work well up to about two dozen, and then everything seems to collapse, take a look at the following article. It has lots of good tips on how to stabilize a matter over thread setup. :bridge_at_night:

https://www.derekseaman.com/2024/09/essential-tips-for-a-stable-matter-over-thread-network.html

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Interesting read. The Thread traffic increase with multi-admin was something I had never thought about, but makes sense. I’m currently at 14 Matter over Thread devices across 3 controllers: Home Assistant, Apple Home and SmartThings.

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The ecosystem has really changed since I last stuck my head up to look around. Still rockin’ the V2 SmartThings Hub but considering options for Matter (as I am looking to add a bunch of new devices to the mix in a home addition project). Seems like now would be the time to upgrade. Hadn’t really considered multiple controllers (as @Automated_House has set up) or any potential downsides of a Matter hub. This linked article gives me more pause…

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The article only applies to Matter over thread networks, not matter over Wi-Fi or matter over bridge (Which will use Wi-Fi for the multi admin part).

And most of the reports indicated there were no problems with less than two dozen thread devices.

So I think the people most likely to run into the problem with the current device selection that’s available Are those who have a lot of nanoleaf lighting using thread.

But as more matter over thread sensors and light switches become available, it could become an issue. Hopefully the matter group will get things straightened out before then.

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Oopsie… I have 28 thread devices and 3 TBR

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Sorry, was there something specific you were referring to at the thread group site?

My post was in regard to CSA who set the specifications for Matter, since the issue is with matter’s multi platform feature.

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Sorry, I misread your comment and thought that you’ve explicitly mentioned Thread devices…

Thread scales way better than Zigbee - google Thread AN1141. Shouldn’t be the bottleneck in this case.

Oh, and sources for statements like this would be nice:

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If you read the link in my post, you will see what is specifically being discussed.

https://www.derekseaman.com/2024/09/essential-tips-for-a-stable-matter-over-thread-network.html

It’s not an issue with thread per se. It’s an issue with the multi admin feature in matter over thread.

As the author says, you would see the same issue in Matter over Wi-Fi except that Wi-Fi can handle the additional traffic because it has much bigger bandwidth.

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I wonder if they were using smart light transitions in Home Assistant or default transition times. That can wreak havoc, flood the network and even toast the SmartThings hub in a multi-admin scenario.

Brought up the topic a year ago, SmartThings does not configure the reporting intervals and can get flooded by periodic reports, unlike Home Assistant which configures them.

If you create certain transitions in Home Assistant, the devices will flood the network constantly reporting the status to the other ecosystems that do not configure the reporting intervals, like SmartThings.

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Really good point.

Since the author of that article has a number of Netatmo lighting devices, I wouldn’t be surprised if he’s using transitions. :horizontal_traffic_light::vertical_traffic_light:

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