pxt-calliope/docs/reference/radio/send-value.md
Sam El-Husseini e3975e65e5 pxt-microbit Accessibility PR (#529)
* Accessibility changes
2017-09-07 13:42:08 -07:00

1.1 KiB

Send Value

Send a string and number together by radio to other @boardname@s. The maximum string length is 12 characters.

radio.sendValue("name", 0);

Parameters

  • name is a string to send by radio
  • value a number to send by radio

Example: Broadcasting acceleration

This program sends your @boardname@'s acceleration (amount it is speeding up or slowing down) in the x direction (left and right) to other @boardname@s. This kind of program might be useful in a model car or model rocket.

radio.setGroup(99)
input.onButtonPressed(Button.A, () => {
    radio.sendValue("acc", input.acceleration(Dimension.X))
})

This program receives the string and number sent by the last program. Then it shows them on the LED screen.

radio.setGroup(99)
radio.onDataPacketReceived(({ receivedString, receivedNumber }) => {
	basic.showString(receivedString);
    basic.showNumber(receivedNumber);
});

See also

on data packet received

radio