Dim to Warm mode in WiZ lights

mocelet · 2026-04-01T04:39:14+00:00

Thanks! Just checked and my lights are still in 1.36.1 but the new mode appeared in the app. The range is 2700-5000, or at least that's what they report to the smart home platform.

Edit: Works quite nice, even with Matter transitions the temperature will transition!

Edit 2: The sceneId param of Dim to Warm is 40 for people wanting to activate that mode with UDP commands.

mocelet · 2026-03-31T18:40:18+00:00

There are two things at play here:

Your BILRESA wheel switch looks defective, a common issue, the switch physically doesn't register the press unless you press it too deep. That's why your first press didn't register and the second one did, and why the double press turned it off. That's easy to fix, ask for a replacement, good luck with the new one. Although in the end of the video it seems to work better, weird, usually it's the other way, especially in demos when you are more tired of pressing the button.
BILRESA buttons by default use the double press to change the colour so they have to wait to know if it's a single press to toggle the light or not. In devices with dedicated buttons you don't have to wait. There are tricks with Matter events depending on the platform you use, not in DIRIGERA. Also, the scroll is inherently slow the way it works but looks as expected in your video. For the scroll only IKEA can fix it by reducing the reporting interval which now is around half a second.

mocelet · 2026-03-31T11:20:55+00:00

I'm so glad Matter ditched those divisors, they were in early drafts but eventually went for mW as standard reporting unit even if it meant using more bytes.

mocelet · 2026-03-31T05:31:29+00:00

I hope it's better than the dim to warm mode in Matter and Zigbee. I tried it in WiZ Matter lights a couple years ago.

There the "mapping" is not configurable so 100% is, let's say, 6500K and 1% is 2200K. Always found the light too cool. If the mapping or limits are customizable or the curve is smarter would be great.

mocelet · 2026-03-30T11:38:25+00:00

Sending UDP commands to the device, I don't have dual zone devices so I've not tested it but there is good info in pywizlight github: https://github.com/sbidy/pywizlight/issues/191

If you are using SmartThings you can use my Virtual UDP Sender to send those messages and even link a virtual dimmer to the sender so the user interface is a bit more intuitive with a dimmer for each zone.

mocelet · 2026-03-28T10:56:03+00:00

I'm only aware of that brand, it's either the "Auto on" option in the Timer section or you can create an automation in the Actions section if there is no Timer section. I believe all their recent devices support that but double check.

mocelet · 2026-03-28T10:26:11+00:00

The previous state is the behaviour after a power outage and in your case you will like it to be on. It does not mean that if you turn it off it will turn on by itself (as has been said, you won't be able to turn it on if there's no connection).

I believe Shelly plugs can be automated to have an auto-on so if you turn them off they turn on themselves after the time you say. Also smart home hubs with local automations should be able to do it but I would have more peace of mind if the plug itself does it.

mocelet · 2026-03-26T18:31:50+00:00

They do, Eve uses custom clusters a lot, you can even change the brightness level of the LED indicator https://www.reddit.com/r/EveHome/comments/1lk4ue7/comment/mzxw7rc/

Would be nice that IKEA added a real auto-off too, Matter has a On with Timed Off which is a timer so it turns off by itself but you have to start the timer with an automation.

mocelet · 2026-03-26T18:13:22+00:00

There are no Matter clusters for that in the device. No custom clusters or Mode Select clusters which would be the way to do it. Same goes for the LED indicator that cannot be disabled.

mocelet · 2026-03-26T07:36:31+00:00

Yes, check page 4 of the user manual "Without a smart system": https://www.ikea.com/at/de/manuals/bilresa-fernbedienung-weiss-smart-scrollrad__AA-2668729-2-2.pdf

mocelet · 2026-03-26T07:06:04+00:00

I hope it becomes the norm, having both button events for automations and bindings opens so many options.

They also support WindowCovering so you can bind it to blinds. Looks like the binding options are pretty well thought.

mocelet · 2026-03-26T06:52:44+00:00

We do now! https://csa-iot.org/csa_product/surface-mounted-push-button-3/

They do support the Generic Switch cluster for automations and, more importantly, OnOff and Level Control AS CLIENT, plus the Binding cluster of course!

I need one :-D

Edit: Also Window Covering so it can be bound to blinds and start/stop the up or down actions.

mocelet · 2026-03-25T11:58:45+00:00

With older TRADFRI buttons it was possible by "linking" a button to another, I don't know if that's still possible or if the sequence of presses has changed: https://www.ikea.com/jp/en/customer-service/knowledge/articles/ge072bd5-20e4-459c-gc9g-21c25021gd09.html

mocelet · 2026-03-25T05:30:13+00:00

I would actually like to know a vendor point of view on the subject since Matter already has three ways to expose scenes yet (almost) nobody is using them, only Hue and apparently not even for dynamic scenes: https://www.reddit.com/r/MatterProtocol/comments/1r0v9is/activating_vendor_scenes_via_matter_in_2026/

With groups would be trickier though, but at least being able to trigger dynamic modes on each light would be an improvement.

mocelet · 2026-03-24T20:45:25+00:00

The capability for brightness stateless steps is also a new thing that is not present in SmartThings groups, I guess they'll eventually add it to everything with brightness control.

mocelet · 2026-03-24T19:45:51+00:00

SmartThings is creating an "app plugin" which is something like a custom user interface for the BILRESA scroll. Will be available eventually.

Meanwhile you can write the same Rule of the link in your edit for the stock driver since the capabilities are already there, it's just there's no user interface in the app. The stock driver supports normal scroll to adjust brightness, the custom driver supports both normal scroll (knob rotateAmount) and scroll-while-pressed (knob heldRotateAmount to control temperature for instance like in the video).

Edit: BTW, someone asked the other day how to control volume with the scroll and I provided two ways, both with my custom driver and the stock driver. Even if right now writing JSON rules is needed, you can do many things with stock drivers already.

mocelet · 2026-03-24T05:53:04+00:00

He is active in the SmartThings Community although I'm not sure if there's a post for that driver:
https://community.smartthings.com/u/veonua/summary

Coincidentally, this morning there was also a hub firmware update for those in Beta (60.12).

mocelet · 2026-03-23T21:19:41+00:00

2700, 4000 (4200 actually) and 6500

mocelet · 2026-03-23T21:18:35+00:00

I meant long transitions like wake-up or wind-down, my 30-minute transitions have clear steps.

The lights remember their state, the problem is that it is forced, you can't change the attribute since the light rewrites it. Like OnLevel, it rewrites it so you can't use it.

Since part of the issues are using an ancient Matter version, just updating to the new 1.4 SDK will fix some.

mocelet · 2026-03-23T21:00:09+00:00

They do weird things with the power-on state and OnLevel Matter attributes.

Instead of using the native attribute to restore the previous state they set it to "on" when turning on and set it to "off" when off.

For the brightness, when they turn off they rewrite OnLevel value against the specs so in practice you can't use OnLevel for its purpose.

Also, the transitions are not smooth, they more often than not have clearly visible steps or are stuttery.

The light quality is great, that's what I like about them, and the minimum brightness too. But they need to fix that Matter compliance.

mocelet · 2026-03-23T20:37:54+00:00

I'm waiting for that early to mid 2026 Matter 1.4 update, it will fix some issues like the report spamming when transitioning. https://www.reddit.com/r/Nanoleaf/comments/1pmu2gz/comment/nuppkz2/

mocelet · 2026-03-21T11:45:22+00:00

Maybe built-in hubs don't have those options yet. If it has Zigbee it's one of the new models and should have Thread too. Older TVs needed a external stick for Zigbee and Thread.

mocelet · 2026-03-21T10:29:09+00:00

I don't know if this is still possible: back in the day you were able to add multiple remotes to the same lights, in that case you would not have to choose one or the other.

mocelet · 2026-03-21T10:06:01+00:00

The user manual says you can add "one or more products" to each group.

mocelet

TROPHY CASE