37 lines
745 B
Markdown
37 lines
745 B
Markdown
# On Signal Strength Changed
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Register code to run when the signal strength of the paired device changes.
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## ~hint
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**App required** You must use one of the [micro:bit apps](https://microbit.org/guide/mobile/) to use this functionality.
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## ~
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```sig
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devices.onSignalStrengthChanged(() => {})
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```
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## Parameters
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* ``body``: code to run when the signal strength changes.
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## Examples
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Display the signal strength on screen:
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```blocks
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devices.onSignalStrengthChanged(() => {
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basic.showNumber(devices.signalStrength())
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})
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```
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## See Also
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[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to), [signal strength](/reference/devices/signal-strength)
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```package
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devices
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``` |