37 lines
1018 B
Markdown
37 lines
1018 B
Markdown
# Signal Strength
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Returns the signal strength reported by the paired device from ``0`` (no signal) to ``4`` (full strength).
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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.signalStrength();
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```
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## Returns
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* the signal strength from ``0`` (no signal) to ``4`` (full strength).
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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), [on signal strength changed](/reference/devices/on-signal-strength-changed)
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```package
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devices
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``` |