I’m curious if the VTM 30 and VTM 31 support matter group bindings. I think it would be supe awesome if they did @EricM_Inovelli. I’m participating in an effort to test it out using Home Assistant and the new Matter Server.
If the groups work similar to how they do on Zigbee then after creating the group you need to bind the Level Control and On/Off cluster from EP2 on the Inovelli to the group in order to control the group from the switch.
Hi Eric,
I tried to setup a group binding between an Inovelli white switch and a set of Nanoleaf lights. I didn’t have much luck.
I used chip-tool to configure the devices. I was able to toggle a group of lights using the chip-tool client, but not the White dimmer. As far as I can tell the dimmer wasn’t sending out multicast commands.
Here’s the basic process I used:
- Use the matter UI to share the devices to a new fabric.
- Add the devices to the chip-tool fabric
./chip-tool pairing code 68 12345678910 --bypass-attestation-verifier true # Light
./chip-tool pairing code 69 12345678910 --bypass-attestation-verifier true # Light
./chip-tool pairing code 50 12345678910 --bypass-attestation-verifier true # Dimmer
- Create the group and keys on the chip-tool client:
./chip-tool groupsettings add-group Office 0x4141
./chip-tool groupsettings add-keysets 0xAAAA 0 0x000000000021dfe0 hex:d0d1d2d3d4d5d6d7d8d9dadbdcdddedf
./chip-tool groupsettings bind-keyset 0x4141 0xAAAA
- Add the group, keys, and ACLs to the lights
./chip-tool groups add-group 0x4141 Office 68 1
./chip-tool groups add-group 0x4141 Office 69 1
./chip-tool groupkeymanagement key-set-write '{"groupKeySetID": 42, "groupKeySecurityPolicy": 0, "epochKey0": "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime0": 2220000,"epochKey1": "d1d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime1": 2220001,"epochKey2": "d2d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime2": 2220002 }' 68 0
./chip-tool groupkeymanagement key-set-write '{"groupKeySetID": 42, "groupKeySecurityPolicy": 0, "epochKey0": "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime0": 2220000,"epochKey1": "d1d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime1": 2220001,"epochKey2": "d2d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime2": 2220002 }' 69 0
./chip-tool groupkeymanagement write group-key-map '[{"groupId": 16705, "groupKeySetID": 42}]' 68 0
./chip-tool groupkeymanagement write group-key-map '[{"groupId": 16705, "groupKeySetID": 42}]' 69 0
./chip-tool accesscontrol write acl '[{"fabricIndex": 3, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null},{"fabricIndex": 3, "privilege": 3, "authMode": 2, "subjects": [50], "targets": [{"cluster": 3, "endpoint": 1, "deviceType": null}, {"cluster": 6, "endpoint": 1, "deviceType": null}, {"cluster": 8, "endpoint": 1, "deviceType": null}]}, {"fabricIndex": 3, "privilege": 3, "authMode": 3, "subjects": [16705], "targets": [{"cluster": 3, "endpoint": 1, "deviceType": null}, {"cluster": 6, "endpoint": 1, "deviceType": null}, {"cluster": 8, "endpoint": 1, "deviceType": null}]}]' 68 0
./chip-tool accesscontrol write acl '[{"fabricIndex": 3, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null}, {"fabricIndex": 3, "privilege": 3, "authMode": 3, "subjects": [16705], "targets": [{"cluster": 3, "endpoint": 1, "deviceType": null}, {"cluster": 6, "endpoint": 1, "deviceType": null}, {"cluster": 8, "endpoint": 1, "deviceType": null}]}]' 69 0
- Test multicast group commands using the chip-tool client:
./chip-tool onoff toggle 0xffffffffffff4141 1
- Setup the group, bindings, and keys on the White dimmer:
./chip-tool groups add-group 0x4141 Office 50 1
./chip-tool groupkeymanagement key-set-write '{"groupKeySetID": 42, "groupKeySecurityPolicy": 0, "epochKey0": "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime0": 2220000,"epochKey1": "d1d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime1": 2220001,"epochKey2": "d2d1d2d3d4d5d6d7d8d9dadbdcdddedf", "epochStartTime2": 2220002 }' 50 0
./chip-tool groupkeymanagement write group-key-map '[{"groupId": 16705, "groupKeySetID": 42}]' 50 0 ./chip-tool binding write binding '[{"fabricIndex": 3, "group": 16705}]' 50 2
./chip-tool binding write binding '[{"group": 16705, "fabricIndex": 3}]' 50 2
This should be sufficient to toggle the group using the dimmer, but no luck.
I can subscribe to one of the light nodes and see that the chip-tool client sends multicast messages toggle them. I don’t see anything from the Inovelli switch.
./chip-tool onoff subscribe on-off 1 100 69 1 --keepSubscriptions true
I can create a direct binding to confirm that the fabric and some other basics work normally:
./chip-tool binding write binding '[{"node": 68, "endpoint": 1, "fabricIndex": 3},{"node": 69, "endpoint": 1, "fabricIndex": 3}]' 50 2
I’m not sure what else to try, short of buying some other binding compatible matter clients.
Please let me know if there’s any additional information I could provide.
Once you add the Inovelli to the group, does it respond to group commands:
The direct binding from endpoint 2 to the two bulbs works though, just not the group binding?
Direct binding works for me in homeassistant with several lights (I see a popcorn effect)
Group binding (using Matter Binding Helper in Home Assistant) does not.
It seems that @securejangle is encountering the same issue as I have, and has gone further by using the chip-tool to try things manually (look at what I linked to at the start of the thread).
it be wicked cool if the Inovelli switch has matter group binding support. I was looking for a confirmation that it does, so that when matter controllers support it I’d be able to use that functionality
Hello, I just want to add that I also tried to setup group binding using inovelli white and Ikea light bulbs, using the Matter Binding integration on home assistant, and it is also not working.
If I can help with something, I can do some troubleshooting. I would really like to get this working.
Hi Eric,
Once you add the Inovelli to the group, does it respond to group commands:
Yes. If I add endpoint 6 to the group, I can toggle the dimmer LED using group commands.
./chip-tool groups add-group 0x4141 Office 50 6
./chip-tool accesscontrol write acl '[{"fabricIndex": 3, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null},{"fabricIndex": 3, "privilege": 3, "authMode": 2, "subjects": [50], "targets": [{"cluster": 3, "endpoint": 6, "deviceType": null}, {"cluster": 6, "endpoint": 6, "deviceType": null}, {"cluster": 8, "endpoint": 6, "deviceType": null}]}, {"fabricIndex": 3, "privilege": 3, "authMode": 3, "subjects": [16705], "targets": [{"cluster": 3, "endpoint": 6, "deviceType": null}, {"cluster": 6, "endpoint": 6, "deviceType": null}, {"cluster": 8, "endpoint": 6, "deviceType": null}]}]' 50 0
./chip-tool onoff toggle 0xffffffffffff4141
I confirmed that the dimmer does not control the LED using a group binding.
The direct binding from endpoint 2 to the two bulbs works though, just not the group binding?
Yes, that’s correct. Direct bindings worked when I set them up using chip-tool.
./chip-tool binding write binding '[{"node": 68, "endpoint": 1, "fabricIndex": 3},{"node": 68, "endpoint": 1, "fabricIndex": 3}]' 50 2
./chip-tool binding write binding '[{"node": 69, "endpoint": 1, "fabricIndex": 3},{"node": 69, "endpoint": 1, "fabricIndex": 3}]' 50 2
I also confirmed that a direct binding between endpoint 2 and 6 on the dimmer works as expected.
Thanks for the feedback. I will work with our team to see if we can get this feature working.
Thank you Eric, I’m excited to hear that!
That would be epic!
This is literally would enable my setup to be perfect (turning a group of lights on without a popcorn effect)

