59 lines
1.2 KiB
Markdown
59 lines
1.2 KiB
Markdown
# Send Buffer
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Sends a buffer to other @boardname@s in the area connected by radio. The
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maximum buffer length is 19 bytes.
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```sig
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radio.sendBuffer(pins.createBuffer(1))
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```
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## Parameters
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* `msg` is a [buffer](/types/buffer) to send by radio.
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## Example: Remote level
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If you load this program onto two @boardname@s, each board will send the level information to the other board.
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```typescript
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let ax = 0;
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let ay = 0;
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basic.forever(() => {
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ax = input.acceleration(Dimension.X);
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ay = input.acceleration(Dimension.Y);
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// encode data in buffer
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let buf = pins.createBuffer(4)
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buf.setNumber(NumberFormat.Int16LE, 0, ax)
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buf.setNumber(NumberFormat.Int16LE, 2, ay)
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radio.sendBuffer(buf)
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})
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radio.onReceivedBuffer(function (receivedBuffer) {
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// decode data from buffer
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ax = receivedBuffer.getNumber(NumberFormat.Int16LE, 0);
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ay = receivedBuffer.getNumber(NumberFormat.Int16LE, 2);
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// display
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basic.clearScreen()
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led.plot(
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pins.map(ax, -1023, 1023, 0, 4),
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pins.map(ay, -1023, 1023, 0, 4)
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)
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});
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```
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## ~hint
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A radio that can both transmit and receive is called a _transceiver_.
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## ~
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## See also
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[on received buffer](/reference/radio/on-received-buffer)
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```package
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radio
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``` |