34 lines
983 B
Markdown
34 lines
983 B
Markdown
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# Send String
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Broadcasts a string data packet to other micro:bits connected via ``radio``.
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## Important Security Consideration
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The functions in the ``radio`` namespace allow the BBC micro:bit to communicate with other micro:bits.
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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.
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For serious applications, BLE should be considered a substantially more secure alternative.
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```sig
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radio.sendString("Hello world!")
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```
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### Parameters
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* msg - a string to be transmitted.
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### Examples
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Broadcasts the provided string to other micro:bits.
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```blocks
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input.onButtonPressed(Button.A, () => {
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radio.sendString("Mr. Watson, come here, I want to see you.")
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})
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```
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### See also
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[receive string](/reference/radio/receive-string), [on data received](/reference/radio/on-data-received)
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