pxt-calliope/docs/reference/radio/send-number.md
Juri Wolf 5f7a8e5301
Updates for V4 (#197)
* update yotta defaults for 16kb devices

* refactor deprecated blocks

* updates for button events

* update button events

* update refference

* update docs

* update docs

* update button event blocks

* update docs

* update block id
2022-08-10 09:36:19 -07:00

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Markdown

# send Number
Broadcast a [number](/types/number) to other @boardname@s connected via ``radio``.
```sig
radio.sendNumber(0);
```
## Parameters
* **value**: a [number](/types/number) to send.
## ~ hint
Watch this video to see how the radio hardware works on the @boardname@:
https://www.youtube.com/watch?v=Re3H2ISfQE8
## ~
## Examples
### Broadcasting acceleration
This example broadcasts the value of your @boardname@'s ``acceleration``
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.
```blocks
input.onButtonEvent(Button.A, input.buttonEventClick(), () => {
radio.sendNumber(input.acceleration(Dimension.X))
})
```
### Light level sender
This example broadcasts the level of the light around it.
You can do some interesting things with it if you use it along with the
[on received number](/reference/radio/on-received-number) example.
```blocks
radio.setGroup(99)
basic.forever(() => {
let level = input.lightLevel()
radio.sendNumber(level)
})
```
## See also
[on received number](/reference/radio/on-received-number)
```package
radio
```