44 lines
898 B
Markdown
44 lines
898 B
Markdown
# Send String
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Sends a string to other micro:bits in the area connected by radio. The
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maximum string length is 19 characters.
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```sig
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radio.sendString("Hello!")
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```
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### Parameters
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* `msg` is a [string](/reference/types/string) to send by radio.
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### Example: Two-way radio
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If you load this program onto two or more micro:bits, you can send a
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code word from one of them to the others by pressing button `A`. The
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other micro:bits will receive the code word and then show it.
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```blocks
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input.onButtonPressed(Button.A, () => {
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radio.sendString("Codeword: TRIMARAN")
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basic.showString("SENT");
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})
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radio.onDataPacketReceived(({ receivedString }) => {
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basic.showString(receivedString);
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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 data packet received](/reference/radio/on-data-packet-received)
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```package
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radio
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``` |