How can use CHIP tool to commission device by QR code or manual pairing code?

[susepc]

devzone 

        This is my basic information:

        1. SDK version: V2.8.0

        2. Project: Matter Light Bulb

        3. Board: 52840DK

        This is my question:

        I can use this command to commission bulb pass:

        $ ./chip-tool pairing ble-thread <node_id> hex:<operational_dataset> <pin_code> <discriminator>

        But when I use below command instead, bulb has no response:

        $ ./chip-tool pairing code <node_id> <qrcode_payload-or-manual_code>

[Amanda Hsieh]

Hi, 

This is because the QR code command tries to commission the device over IP, and this device is not connected to the Thread network. The CHIP Tool tries to resolve the device IP address, and it fails. You can use the QR code command only if the device was connected to the Thread network before.

Regards,
Amanda H.

[susepc]

Amanda Hsieh 

        Thanks for your response!

        AFAIK, if bulb has been connected to the Thread network, that means it is in the Thread network and can be controlled by Phone.

        Base above, why we need to commission it again by QR code or manual pairing code?

[Amanda Hsieh]

susepc said:

if bulb has been connected to the Thread network, that means it is in the Thread network and can be controlled by Phone.

That just means it's a node in the thread network, but doesn't belong to any Matter controller device. You still need to commission the device to a Matter controller (fabric) using its QR/manual code so it can exchange credentials, create secure sessions, and be authorized/owned by your controller app. See Commissioning into a network over IP section in Working with the CHIP Tool. 

[susepc]

Amanda Hsieh 

        Got it, may I know how to add a node in the thread network?

BR

Chuan

[Amanda Hsieh]

See Step 6: Commission Matter device into an existing IP network

[susepc]

 Amanda Hsieh 

        The page you paste I have viewed before, if I send this command:
        $ ./chip-tool pairing ble-thread <node_id> hex:<operational_dataset> <pin_code> <discriminator>

        Device will be add to openthread network as well as matter fabric at the same time, should I choose only to add to openthread network only?

[Amanda Hsieh]

No.