On Data Packet Received

Run part of a program when the micro:bit receives a number or string over radio.

Callback Parameters

• packet - the packet that was received by the radio. The packet has the following properties:
  • receivedNumber - The number that was sent in this packet or 0 if this packet did not contain a number. See send number and send value
  • receivedString - The string that was sent in this packet or the empty string if this packet did not contain a string. See send string and send value
  • time - The system time of the micro:bit that sent this packet at the time the packet was sent.
  • serial - The serial number of the micro:bit that sent this packet or 0 if the micro:bit did not include its serial number.
  • signal - How strong the radio signal is from -128 (weak) to -42 (strong).

Troubleshooting

The on radio data event can only be created once, due to the hardware restrictions.

The radio set group might need to be set, synchronized , before the radio events will function.

See also

send number, send string, send value, set group

radio