hcitool

Monitor, configure connections, and send special commands to Bluetooth devices. More information: https://manned.org/hcitool.

Scan for Bluetooth devices:

hcitool scan

Output the name of a device, returning its MAC address:

hcitool name {{bdaddr}}

Fetch information about a remote Bluetooth device:

hcitool info {{bdaddr}}

Check the link quality to a Bluetooth device:

hcitool lq {{bdaddr}}

Modify the transmit power level:

hcitool tpl {{bdaddr}} {{0|1}}

Display the link policy:

hcitool lp

Request authentication with a specific device:

hcitool auth {{bdaddr}}

Display local devices:

hcitool dev