38 lines
983 B
Markdown
38 lines
983 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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For another device like a smartphone to use any of the Bluetooth "services" which the @boardname@ has, it must first be [paired with the @boardname@](/reference/bluetooth/bluetooth-pairing). Once paired, the other device may connect to the @boardname@ and exchange data relating to many of the @boardname@'s features.
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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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``` |