Set up Keyring P1.

Put the device together with the illustrated assembly guide. The kit page lists the parts and the print files.

Your AI coding agent installs the firmware over USB-C. Give it the flashing instructions; it asks before it writes to the board.

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Keep the device next to your iPhone and open the Raily Device app.

1. Press the RESET button on the device once. For the next 3 minutes you can add it in the app.
2. In the Raily Device app, on Nearby, tap Add this device.
3. The app asks for one last step: tap Pair.
4. Confirm the pairing request on your iPhone: tap Pair.

RESET is the small button next to the USB-C port on the XIAO, or RESET on the Expansion Board. Press it only once: two quick presses put the board into flashing mode.

If the app asks you to press the reset button, press RESET once and tap Add this device again.

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