Questions Regarding Google Home Support for Specific Matter Clusters and Attributes

[milesW]

I am developing a Matter device using the esp-matter SDK and the ESP32-C6.
I am testing the `On/Off Plugin Unit endpoint` and the `Mode Select endpoint` with Google Home.

I have some questions because I am wondering whether the following clusters and attributes are supported in Google Home. From what I can tell, it seems they are not yet supported.

1. Can the StartUpOnOff attribute of the On/Off cluster be used in Google Home?

2. Can the User Label cluster be used in Google Home?

3. Can the Mode Select cluster be used in Google Home?

If there are any resources or documentation listing which clusters and attributes are supported by Google Home, I would really appreciate it if you could share them with me. I tried to look for this information but was not able to find it.

[Suc_dpe · Accepted solution]

Hi, great questions! As of now, Google Home doesn’t fully support the StartUpOnOff attribute, User Label cluster, or Mode Select cluster in Matter integrations. Official documentation is still limited, but I’d recommend checking the Google Home Matter support page for any updates as new clusters are added gradually. 

[marcjero]

The Mode Select cluster is working now in the preview version of GH. I created a On/Off Plugin Unit device and added the Mode Select cluster to it. It only works when you change the type of the plug to something like a heater or a fan in the GH App, which makes sense.

However GH doesn't display the labels of the available modes (mode number is displayed) and it's not possible to change a mode using Automations.