37 lines
1.0 KiB
Markdown
37 lines
1.0 KiB
Markdown
# Receive Number
|
|
|
|
The broadcast function.
|
|
|
|
Reads the next radio packet as a number data packet.
|
|
|
|
## Important Security Consideration
|
|
|
|
The functions in the ``radio`` namespace allow the BBC micro:bit to communicate with other micro:bits.
|
|
|
|
This API does not contain any form of encryption, authentication or authorization. It's purpose is solely for use as a teaching aid to demonstrate how simple communications operates, and to provide a sandpit through which learning can take place.
|
|
|
|
For serious applications, BLE should be considered a substantially more secure alternative.
|
|
|
|
```sig
|
|
radio.receiveNumber();
|
|
```
|
|
|
|
### Returns
|
|
|
|
* packet - a number received.
|
|
|
|
### Examples
|
|
|
|
Broadcasts the value of ``acceleration`` x to other micro:bits.
|
|
|
|
```
|
|
radio.onDataReceived(() => {
|
|
led.plotBarGraph(radio.receiveNumber(), 1023)
|
|
})
|
|
```
|
|
|
|
### See also
|
|
|
|
[send number](/reference/radio/send-number), [receive number](/reference/radio/receive-number), [on data received](/reference/radio/on-data-received), [set group](/reference/radio/set-group)
|
|
|