pxt-calliope/docs/reference/radio/send-value.md
2016-10-24 16:30:21 -07:00

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# Send Value
Send a [string]() and [number]() together by ``radio`` to other micro:bits.
The maximum [string]() length is 12 characters.
```sig
radio.sendValue("data", 0);
```
### Parameters
* ``name`` is a [string](/reference/types/string) to send by radio
* ``value`` a [number](/reference/types/number) to send by radio
### Example: Broadcasting acceleration
This program sends your micro:bit's **acceleration** (amount it is
speeding up or slowing down) in the `x` direction (left and right) to
other micro:bits. This kind of program might be useful in a model car
or model rocket.
```blocks
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.
```blocks
radio.setGroup(99)
radio.onDataPacketReceived(({ text, receivedNumber }) => {
basic.showString(text);
basic.showNumber(receivedNumber);
});
```
### See also
[on data packet received](/reference/radio/on-data-packet-received)
```package
radio
```