Can CHIP tool control switch to turn on/off bulb?

[susepc]

Dear Devzone:

I have setup done matter environment as blow:

• NB: Ubuntu 22.04 with WIFI and BT, installed CHIP tool from official pre-built (V2.8.0 corresponding version: chip-tool-linux_x64.zip)
• Raspberry Pi4 with OTBR configured
• DK: nRF52840DK with coprocessor examples(build from NCS 2.8.0)
• DK: nRF52840DK with Light Bulb examples(build from NCS 2.8.0)
• DK: nRF52840DK with Light Switch examples(build from NCS 2.8.0)

I can commission bulb and switch pass, then binding bulb and switch pass. Finally, I can use chip tool or switch(press button2) to control bulb on/off.

I would like to know whether it is possible to use CHIP tool to send commands to switch, so that the switch can control the light bulb?

BR

Chuan

[Amanda Hsieh]

Hi, 

See this Chip tool guide/Step 7: Control application Data Model clusters.

Regards,
Amanda H. 

[susepc]

 Amanda Hsieh 

        Sure, I can use this command to control bulb on/off, as below:

        $ ./chip-tool onoff toggle <node_id> <endpoint_id>

        But when I send this command to switch, it popup do not support of/off cluster.

        So I want to know whether CHIP tool can send command to switch to turn on/off bulb? (as case 3)

        case1: CHIP tool  -> bulb : pass

        case2: Switch - > bulb: pass

        case3: CHIP tool -> switch -> bulb: ???

[Amanda Hsieh]

Hi,

Our Light Switch sample is not prepared to be used in this way. There is no callback implementation for receiving the on/off command from the CHIP tool, hence the mentioned error. Our sample is prepared to use the onboard button and send a command to the connected Light Bulb device in this way. If you want to use it by sending an on/off command by Chuptool to Light Switch, you need to implement the emberAfOnOffClusterInitCallback and MatterPostAttributeChangeCallback callbacks in your Light Switch application.

-Amanda H.

[susepc]

Amanda Hsieh 

        Got it，thx