54 lines
1.2 KiB
Markdown
54 lines
1.2 KiB
Markdown
# send Value
|
|
|
|
Send a [string]() and [number]() together by ``radio`` to other @boardname@s.
|
|
The maximum [string]() length is 8 characters.
|
|
|
|
```sig
|
|
radio.sendValue("name", 0);
|
|
```
|
|
|
|
## Parameters
|
|
|
|
* **name**: a [string](/types/string) that is the name of the value to send.
|
|
* **value**: a [number](/types/number) that is the value to send.
|
|
|
|
## ~ hint
|
|
|
|
Watch this video to see how the radio hardware works on the @boardname@:
|
|
|
|
https://www.youtube.com/watch?v=Re3H2ISfQE8
|
|
|
|
## ~
|
|
|
|
## 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.
|
|
|
|
```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.onReceivedValue(function (name, value) {
|
|
basic.showString(name);
|
|
basic.showNumber(value);
|
|
});
|
|
```
|
|
|
|
## See also
|
|
|
|
[on received value](/reference/radio/on-received-value)
|
|
|
|
```package
|
|
radio
|
|
``` |