pxt-calliope/docs/reference/radio/send-number.md

39 lines
925 B
Markdown
Raw Normal View History

2016-03-26 00:47:20 +01:00
# Send Number
Broadcast a number to other micro:bits connected via ``radio``.
2016-03-26 00:47:20 +01:00
### Parameters
* num - a number to send.
2016-03-26 00:47:20 +01:00
### Example: Broadcasting acceleration
2016-03-26 00:47:20 +01:00
This example broadcasts the value of your micro:bit's ``acceleration`` 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.
2016-03-26 00:47:20 +01:00
```blocks
input.onButtonPressed(Button.A, () => {
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
[Mailbot](/reference/radio/receive-number) example.
```blocks
radio.setGroup(99)
basic.forever(() => {
let level = input.lightLevel()
radio.sendNumber(level)
})
```
2016-03-26 00:47:20 +01:00
### See also
2016-04-16 00:02:26 +02:00
[receive number](/reference/radio/receive-number), [on data received](/reference/radio/on-data-received)
2016-03-26 00:47:20 +01:00