pxt-calliope/docs/reference/devices/on-signal-strength-changed.md

On Signal Strength Changed

The on signal strength changed function.

Register code to run when the signal strength of the paired device changes.

Bluetooth required

The functions in the devices namespace allow the BBC micro:bit to communicate with a separate (remote) device, such as a smartphone, over Bluetooth (Smart).

The set of supported events will depend on the remote device and the BBC micro:bit apps available for the remote device.

devices.onSignalStrengthChanged(() => {})

Parameters

• body: code to run when the signal strength changes.

Examples

Display the signal strength on screen:

devices.onSignalStrengthChanged(() => {
    basic.showNumber(devices.signalStrength(), 150)
})

See Also

tell remote control to, raise alert to, signal strength