Thingy:53 Matter - temperature subscription

[sigitas]

Hi,

1. I have working `thingy:53` Matter weather station

[[04:26:03.183,349] <dbg> chip: [DMG]Endpoint 1, Cluster 0x0000_0402 update version to 61043cb7
[04:26:03.183,532] <dbg> chip: [DMG]Endpoint 3, Cluster 0x0000_0403 update version to d8898bae
[04:26:03.183,685] <dbg> chip: [DMG]Endpoint 2, Cluster 0x0000_0405 update version to 9e4fe60a

My goal is to run Linux matter application (node) that it will subscribe and receive temperature measurements. For that purpose I re-used Linux  lighting-app (github) and added `temperaturemeasurement ` client cluster to that applications. Both nodes has been commissioned using `chip-tool`

2. Provide ACL for Linux app

chip-tool accesscontrol write acl '[{"fabricIndex": 1, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null}, {"fabricIndex": 1, "privilege": 3, "authMode": 2, "subjects": [53], "targets": [{"cluster": 1026, "endpoint": 1, "deviceType": null}]}]' 32 0

where node `53` is thingy:53 device and node `32`: Linux application.

3. Create binding table for Node `53` (thingy) 

chip-tool binding write binding '[{"fabricIndex": 1, "node": 32, "endpoint": 1, "cluster": 1026}]' 53 1

4. Subscribe for temperature measurements.

chip-tool binding subscribe binding 3 12 53 1

According Matter specification "8.5 Subscription Interaction" I assume that binding table should provide relationship between subscriber (node `32`) and publisher (node `53`)

There is no documentation/example regarding on official connectedhomeip  chip-tool examples regarding node subscriptions. Is it my assumptions correct?

Thank you in advance!

[Sigurd Hellesvik]

Hi,

I will have a look at this and return with more information tomorrow.

Regards,
Sigurd Hellesvik

[Sigurd Hellesvik]

Hi,

The issue in this case seem to be the same as in  Matter Binding.

Please continue discussing the issue in that case.

Regards,
Sigurd Hellesvik

[Benny Nestler]

Hi sigitas 

same/identical question in my post. See https://devzone.nordicsemi.com/f/nordic-q-a/93268/matter-is-there-an-example-tutorial-how-to-deal-with-subscriptions-readings-of-an-cluster---attribute-with-a-device-not-with-chip-tool

I learned from Marte Myrvold that a subscriptions has nothing to do with the binding process and/or binding cluster. So I don't think that you have to bind your devices by the binding cluster. I thought that the binding cluster must be used, if you want to deal with commands of a cluster. In all examples I've found, the binding custer is used to bind a specific cluster - command to a specific node / group.