Using matter binding with white switches with home assistant matter server 8.1?

harryh · August 15, 2025, 8:27pm

Home Assistant Matter Server 8.1 was released earlier this week. It contains some very rudimentary support for matter binding. See here:

github.com/matter-js/python-matter-server

add node binding dialog.

main ← Luxni:feat_node_binding

opened 11:01AM - 19 May 25 UTC

Luxni

+649 -3

I added a button in the binding cluster of the node to add the binding relations…hip of the device. Note: Currently, binding to the endpoints of the device is only supported. I conducted tests using [light_switch](https://github.com/espressif/esp-matter/tree/main/examples/light_switch) and [light](https://github.com/espressif/esp-matter/tree/main/examples/light) in the esp-matter sdk, and the test results met the requirements. (One-to-one endpoint control can be achieved, as well as one-to-many endpoint control.) The operation is as follows 1. Enter the binding cluster of the node, and a 'Binding' button will appear on it. 2. After clicking the 'Binding' button, you can add or delete binding relationships. As shown in the following figure: ![20250519_183058_22](https://github.com/user-attachments/assets/061b6608-5423-4d6d-9b45-c3b05e91b934)

I’m trying to figure out if I can use this to bind two white switches together so they can bind over matter instead of using an automation. I haven’t been able to get it to work yet though. Anyone else have any luck? It’s not entirely clear to me what endpoints/cluster IDs I need to be binding to.

rohan · August 15, 2025, 9:59pm

I don’t own any Thread devices so no personal experience, but this thread has links out to where someone was successful previously with it so probably has the endpoint details: White Series Dimmer (VTM31-SN) - Bug/Enhancement Thread - #12 by Andrew123

inovelli.shaft035 · August 16, 2025, 5:36pm

I haven’t done it with 2 switches, but with a switch and a fan canopY. It should be the same idea though. You’ll want to bind the binding cluster on endpoint 2 on the control device to endpoint 1 clusters 6 and 8 on the second device.

I did have a bit of trouble getting it to work at first and ended up having to factory reset both devices and try again. My understanding is there is a bug in the current implementation where deleting bindings does not work.

francesc0 · August 16, 2025, 6:17pm

@harryh Everything @inovelli.shaft035 said is correct, and I can confirm it works the same for dimmer > dimmer. Bind the Dimer Switch cluster to the target’s endpoint 1, cluster 6 for on/off and cluster 1 endpoint 8 for brightness.

Deleting bindings is broken, so try to avoid that if possible. There’s a git issue open and the dev is looking for some advanced logging but no one has been able to provide it yet.

harryh · August 16, 2025, 7:24pm

Hrm, I tried this but it isn’t working. And I’m definitely running into the deleting bindings problem because there are access control entries in the dimmer I’m trying to bind to, but they don’t show up in the binding dialog to delete.

Maybe I’ll just pause for a bit until they get delete working at least. I’m worried I’m going to get my dimmers in a bad state and not be able to fix it.

-harryh

Spencer · August 27, 2025, 2:43pm

I was able to successfully bind Inovelli White Dimmer Switch with 5 LightingInside Matter over wifi bulbs without issue just using the on/off. I am going to give the dimmer functionality a try later. I was also able to delete the binding as long as the node was still online with my matter server. If the node is removed from matter I was not able to delete the binding.

like other people have said if you turn on/off from home assistant the feedback doesnt get sent back to the switch, probably will come up with some automation to “turn it on” so it saying in sync if that were too happen. Also have had no issues getting this into home kit and getting the feedback to work correctly.