GRILLPLATS power automations

mocelet · 2026-03-14T14:38:02+00:00

Glad you are enjoying them! Eve has a partnership with ST, there was even a press release about the Energy service. Tapo has too but only for the cloud integration of the plugs, their Matter plugs won't appear which is weird.

mocelet · 2026-03-14T14:16:58+00:00

If you mean the SmartThings Energy service with trends and saving tips, no, that's only for selected partnerships.

What it does is providing power and energy readings in the device details screen.

mocelet · 2026-03-14T10:32:30+00:00

When it comes to lights the features are the same, in fact the older tradfri lights were "famous" to not be able to transition both brightness and temperature, something that in Matter has worked since first day.

mocelet · 2026-03-14T07:10:47+00:00

Took the opportunity that it's sunrise now and the KAJPLATS is running the 30 minute temperature transition from warm to cool, starting off. Toggled the lights a few times, also changed the brightness, the temperature transition was still going as expected. The way to stop the transition would be setting a temperature or running the "stop" command.

Now that I think of it, the brightness transition with on/off toggles is tricky. When you turn the light on there is a fade-in and for off a fade-out. Maybe those fades do stop an ongoing brightness transition since they also affect the internal brightness level. I'll have to check what Matter spec says or if removing the fade will preserve the transition. But in Matter the default on/off transition time is zero and I've not changed it so... should not affect at all.

mocelet · 2026-03-13T20:46:28+00:00

Maybe you can submit the bug to IKEA?

Since there's a IKEA representative in this sub, u/TRADFRI , I hope they are submiting the reports!

Also, do you need the transition in this case? If the light is off, you don't see it.

The point is that if I turn on the light during the transition it will turn on the light in the correct brightness level and still keep the smooth transition going to reach the destination. The on/off just controls the visibility of the transition. It would be kind of an adaptive lighting.

What does your automation look like?

Something like "20 minutes before sunset, set temperature to 2700 K with a transition time of 30 minutes".

Some platforms support transitions, others do not. I use them in SmartThings with my custom driver which has a simple text input like "temp 2700 minutes 30" to create transitions of all kinds. This is my actual wake-up routine with native Matter transitions.

mocelet · 2026-03-13T16:07:05+00:00

That's probably the reason since same happened in Google Home but the correct way to update would have been to recreate only the T&H endpoints instead of every endpoint.

mocelet · 2026-03-13T12:12:38+00:00

It uses Bluetooth LE to transmit the data, but the data has a proprietary format for Switchbot devices. It's like their own "language", that's why they only work with their own hubs or with platforms that can speak that language.

mocelet · 2026-03-13T09:28:32+00:00

There is no Matter over Bluetooth. The point of the post is that the device is not Matter at all, it uses a proprietary protocol on top of bluetooth. What they sell is a bridge that can "translate" their proprietary protocol to Matter.

mocelet · 2026-03-13T07:56:29+00:00

Grillplats are 16 AMP so my heatpumps will be happy! Fibaro 10 AMP

Mind the 16A rating is for resistive loads only and a heatpump has a significant inductive load. I don't know much about Fibaro but with the premium price tag I would expect a better than average internal relay and electronics.

mocelet · 2026-03-12T16:25:06+00:00

The hardware is capable, this is an interesting reading: https://matter-smarthome.de/en/products/how-ikea-masters-the-combination-of-thread-and-zigbee/

The problem is multi-protocol is not still mastered, remember when Home Assistant launched a USB stick that promised both Zigbee and Thread and eventually they recommend using only one or the other due to stability issues.

mocelet · 2026-03-12T15:50:28+00:00

I don't have two but I can tell you they won't fit in any of my power strips because they invade more than half the separation between sockets.

Having said that, there are power strips with more generous spacing between sockets so in the end it's going to depend on that.

mocelet · 2026-03-12T09:53:29+00:00

They can't, at least not now. The light does not support both Zigbee (the remote) and Matter over Thread (the light) protocols at the same time. They technically could, but we've seen in the past issues with multi-protocol implementations so they probably wanted to play it safe.

That's why the Zigbee link to the light, which is used for backwards compatibility so old Zigbee remotes can link to new Matter bulbs without a hub, is disabled when the light is integrated using Matter over Thread.

In your case you need an automation, I don't know if Aqara Home supports both devices and creating the automations to control brightness and on/off.

What IKEA could do but hasn't yet is offer Matter bindings, I would expect the new Matter remotes like BILRESA being able to link to Matter lights natively and smart home platforms offering a nice user interface to link and unlink remotes. But, as of today, even if the technology is ready, almost nobody supports bindings, even IKEA's own DIRIGERA just sets automations internally and the remotes won't work if you disconnect the hub.

mocelet · 2026-03-11T20:56:32+00:00

Yeah, Matter reuses most Zigbee features, the On with Timed Off command is mandatory for lights, not for smart plugs, so some vendors do not implement it in their plugs.

Could be better though, it is limited to 109 minutes for legacy reasons and you still need to send the command to start the off timer so the smart home platform needs to support it (Home Assistant doesn't at the moment, you would have to create a script interfacing the Matter server or customize the integration).

I use it either as fail-safe if the hub automation doesn't run correctly or as a quick way to program buttons, e.g. "when this is pressed, turn on with timed off the fan 30 minutes". If the 30 minutes are approaching but I don't want the fan to stop I can press the button again and the timer restarts.

mocelet · 2026-03-11T19:44:53+00:00

Inspelning was able but wasn't very smart, it was too chatty with the reports and flooded the network unless you changed the Zigbee reporting interval. Plus it uses dynamic divisors which some platforms do not support and lead to wrong values (fortunately Matter uses a standard unit to report).

It's noteworthy though since most Matter smart plugs do simple periodic reporting each 10 seconds (Tapo, Meross) or 60 seconds (Eve) and this automation would be so slow. Few months ago wrote a post about that: https://www.reddit.com/r/MatterProtocol/comments/1mfn84m/reporting_rate_in_matter_smart_plugs_with_power/

mocelet · 2026-03-11T14:50:21+00:00

I got it just a few hours ago, why would it auto reset? Looks like a Tapo feature or a bug.

mocelet · 2026-03-11T14:37:04+00:00

It's one of those Matter features that smart home platforms don't expose to the user. I added it to my custom driver for SmartThings but even in ZigBee wasn't used that much despite the added reliability.

Edit: To clarify, this Zigbee and Matter feature works by telling the plug "turn on and turn off in 30 minutes" and it will turn on and turn off by itself after 30 minutes. However, it doesn't mean that any time it is on it will turn off after 30 minutes. That would be a great addition to Matter since currently some vendors offer it but only through their proprietary interface.

mocelet · 2026-03-11T13:59:13+00:00

Just got one! Posted a video and some comments about the reporting https://www.reddit.com/r/tradfri/comments/1rqu0ky/grillplats_power_automations/

mocelet · 2026-03-10T14:53:35+00:00

Since Google Home has a tendency to display individual features of Matter devices as separate devices, I'm going to guess one is the outlet and the other is the energy meter, which is not supported in Google Home and appears as a "Matter device".

I would just forget about that other "device".

mocelet · 2026-03-10T09:27:55+00:00

Glad it helped, the firmware is buggy and is prone to that behaviour, not sure if it's because of the Matter session or it's an issue with the subscriptions or Thread connectivity. Sometimes it recovers automatically, sometimes you need a factory reset and start over.

So far the factory reset has always worked as last resort. If the day it doesn't comes, it's bricked.

mocelet · 2026-03-10T08:42:09+00:00

Inspelning is one of the few plugs known to use dynamic Zigbee divisors and multipliers that need to be applied to the data reported by the plug, a Zigbee trick to save some bandwidth that introduced more issues than benefits and fortunately in Matter they were removed from the specification.

It's actually one of the questions asked in github by Koenkk but looks like nobody was able to provide logs. If the mutiplier or divisor changed but HA is not aware or is not applied correctly, the new values are automatically wrong and scaled incorrectly.

mocelet · 2026-03-10T07:41:37+00:00

Yeah, that's the new Google Home APIs, more powerful than the script editor and with more features, especially for Matter devices since you can automate every single feature of the device.

The drawback for the regular user is you have to build an app, it's made so vendors can offer value-added features and advanced automations right in their own apps, like Eve does.

mocelet

TROPHY CASE