46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
# Received Signal Strength
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> Note: This API has been deprecated! Use [on data packet received](/reference/radio/on-data-packet-received) instead.
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Find how strong the ``radio`` signal is, from `-128` to `-42`.
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(`-128` means a weak signal and `-42` means a strong one.)
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The @boardname@ finds the signal strength by checking how strong it was
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the last time it ran the
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[on data packet received](/reference/radio/on-data-packet-received) function. That means
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it needs to run **receive number** first.
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```sig
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radio.receivedSignalStrength();
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```
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### Returns
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* a [number](/reference/types/number) between `-128` and `-42` that means
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how strong the signal is.
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### Simulator
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This function only works on the @boardname@, not in browsers.
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### Example
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This example shows how strong the radio signal of the
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[light level sender example](/reference/radio/send-number) is.
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```blocks
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let x = 0;
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radio.setGroup(99);
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basic.forever(() => {
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x = radio.receiveNumber();
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basic.showNumber(radio.receivedSignalStrength());
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});
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```
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### See also
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[on data packet received](/reference/radio/on-data-packet-received), [send number](/reference/radio/send-number), [on data received](/reference/radio/on-data-received)
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```package
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radio
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``` |