48 lines
1.3 KiB
Markdown
48 lines
1.3 KiB
Markdown
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# Write Received Packet To Serial
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Writes the last packet received by the ``radio`` to serial in JSON format.
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Should be called within a callback to
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[on data packet received](/reference/radio/on-data-packet-received).
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```sig
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radio.writeReceivedPacketToSerial();
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```
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### Data received format
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The format for received data printed to serial is as follows:
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- [send number](/reference/radio/send-number): ```{v:ValueSent,t:MicrobitTimeAlive,s:SerialNumber}```
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- [send value](/reference/radio/send-value): ```{v:ValueSent,t:MicrobitTimeAlive,s:SerialNumber,n:"Name"}```
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- [send string](/reference/radio/send-string): ```{t:MicrobitTimeAlive,s:SerialNumber,n:"Text"}```
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### Examples
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When ```radio``` data is received (after pressing the ``A`` button on
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the second micro:bit), this program sends temperature data to
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serial.
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```blocks
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input.onButtonPressed(Button.A, () => {
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radio.sendNumber(input.temperature());
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});
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radio.onDataPacketReceived(() => {
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radio.writeReceivedPacketToSerial();
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});
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```
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Sample output to serial when ``A`` button pressed:
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```Text
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{v:27,t:323,s:0}
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```
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### See also
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[send number](/reference/radio/send-number),
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[send value](/reference/radio/send-value),
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[send string](/reference/radio/send-string),
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[on data packet received](/reference/radio/on-data-packet-received)
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```package
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radio
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```
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