hpsaturn/bluetooth_serial.md

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Created April 6, 2020 09:44

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Connecting a Bluetooth device for serial communication on Arch Linux.

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bluetooth_serial.md

The following are instructions for connecting a Bluetooth device for serial communication on Arch Linux using BlueZ 5.31.

Prerequisites

The following packages are required:

bluez: bluetoothd
bluez-utils: bluetoothctl, rfcomm

Pair

Start daemon: systemctl start bluetooth

Pair using bluetoothctl:

power on
agent on
scan on
... wait ...
scan off
pair <dev>

Create serial device: rfcomm bind 0 <dev>

You should now have /dev/rfcomm0.

Unpair

Remove serial device: rfcomm release 0
Unpair using bluetoothctl:
```
remove <dev>
power off
```
Stop daemon: systemctl stop bluetooth

Troubleshooting

Check rfkill list to make sure that the Bluetooth device is not blocked.

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