Matter - Android CHIP Tool fails to send commands to clusters and read attributes from clusters

[jacobbluhm]

Following this link -> developer.nordicsemi.com/.../ug_matter_gs_adding_clusters.html I have set up two endpoints on a Matter end device (nRF52840 DK) and some commands and attributes cant be interacted with. I have modified the nRF Connect SDK v2.1.0 Template sample project and added a temperature sensor endpoint. Following Nordics tutorial, the On/Off cluster is needed to trigger temperature reads. My problem is when I send the on or off command to the On/Off cluster the Android CHIP Tool returns with a "Command Failed" error (See below).

  

The basic cluster works as expected and endpoint 0 does too. Not sure how to solve this error, any suggestions?

Error from End Device:

 

Fullscreen 8203.ErrorOutput.txt Download

I: 168771 [EM]Received message of type 0x8 with protocolId (0, 1) and MessageCounter:195486001 on exchange 35492r
D: 168781 [EM]Handling via exchange: 35492r, Delegate: 0x2000cd24
D: 168787 [DMG]No command 0x0000_0001 in Cluster 0x0000_0006 on Endpoint 0x1
D: 168794 [DMG]Command handler moving to [ Preparing]
D: 168799 [DMG]Command handler moving to [AddingComm]
D: 168804 [DMG]Command handler moving to [AddedComma]
D: 168809 [DMG]Decreasing reference count for CommandHandler, remaining 0
I: 168816 [IN]Prepared secure message 0x20005124 to 0x000000000001B669 (1)  of type 0x9 and protocolId (0, 1) on exchange 35492r with MessageCounter:17585820.
I: 168830 [IN]Sending encrypted msg 0x20005124 with MessageCounter:17585820 to 0x000000000001B669 (1) at monotonic time: 000000000002937E msec
D: 168844 [DMG]Command handler moving to [CommandSen]
D: 168849 [DMG]Command handler moving to [AwaitingDe]
I: 168901 [EM]Received message of type 0x10 with protocolId (0, 0) and MessageCounter:195486002 on exchange 35492r
D: 168911 [EM]Found matching exchange: 35492r, Delegate: (nil)
D: 168917 [EM]Rxd Ack; Removing MessageCounter:17585820 from Retrans Table on exchange 35492r
D: 168925 [EM]Removed CHIP MessageCounter:17585820 from RetransTable on exchange 35492r
E: 168971 [SWU]No suitable OTA Provider candidate found
I: 168976 [SWU]No provider available

[Sigurd Hellesvik]

Hi Jacob,

To clarify:

Does the error from your End Device only appear after you try to send the command from the Android CHIP Tool?

Regards,
Sigurd Hellesvik

[jacobbluhm]

Yes, the ErrorOutput.txt is what the end device outputs after pressing 'Invoke' on the Android CHIP Tool.

[Sigurd Hellesvik]

Will the event handler in your main.c be called when the error happens?

Regards,
Sigurd Hellesvik

[jacobbluhm]

No, the event handlers are not called, I confirmed this by adding LOG_INF() print statements inside the event handlers.

void AppTask::SensorActivateHandler()
{
        LOG_INF("SensorActivateHandler");
        StartSensorTimer(500);
}

void AppTask::SensorDeactivateHandler()
{
        LOG_INF("SensorDeactivateHandler");
        StopSensorTimer();
}

void AppTask::SensorMeasureHandler()
{
        LOG_INF("SensorMeasureHandler");
        chip::app::Clusters::TemperatureMeasurement::Attributes::MeasuredValue::Set(
                /* endpoint ID */ 1, /* temperature in 0.01*C */ int16_t(rand() % 5000));
}

The tutorial puts the event handlers into app_task.cpp.

[Sigurd Hellesvik]

Hi,

Having another look at your log, it looks like the error is that the command you try to send is not available from your application
"No command 0x0000_0001 in Cluster 0x0000_0006 on Endpoint 0x1"

I realize that it is not the best tip, but let's start with:
Can you double check that your setup of the cluster is correct?

Regards,
Sigurd Hellesvik

[jacobbluhm]

Does the setup of the cluster refer to the .zap file? (Attached below, changed name from template.zap to template - zap.txt because DevZone wouldn't accept .zap file)

template - zap.txt

I have double checked I've made all the modifications called out in the Nordic tutorial, which I think is a double check that the cluster is setup correctly. I can only interact with Endpoint 0 from the Android CHIP Tool.

void MatterPostAttributeChangeCallback in zcl_callbacks.cpp is never called, this seems to be the root of the problem

[Sigurd Hellesvik]

Hi,

I am not able to figure out what is wrong so far.

Can you zip your project, so that I can have a look to see if it looks right and see if I am able to reproduce?

Regards,
Sigurd Hellesvik

[jacobbluhm]

sensor - Copy.zip

I have this project located in C:\ncs\v2.1.0\nrf\samples\matter

Thanks!

[Sigurd Hellesvik]

I did not find anything at a scan through your project.

I will try to run it and see if I see the same issue or not tomorrow.

Regards,
Sigurd Hellesvik