Commissioning a Matter device is typically done by scanning a QR code (printed on the device or its packaging) with a smartphone app such as Apple Home, Google Home or Alexa; the QR carries the Setup PIN and Discriminator needed to authenticate the pairing.
True
The Matter commissioning user experience follows a fixed sequence: the user scans the QR code, the app parses Setup PIN, Discriminator, Vendor ID and Product ID, the device advertises its commissioning mode over BLE or Wi-Fi/Thread, the app then establishes a secure PASE channel using the Setup PIN as the shared secret, and finally the commissioner pushes Wi-Fi or Thread credentials plus the operational certificate. If the QR code is unreadable, an 11-digit manual setup code carries the same information for typed entry.
Always keep the QR code (or the 11-digit manual code) after installation: in Matter the Setup PIN is single-use for commissioning, but the printed code is needed again for any factory reset and recommissioning.
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