52 lines
1.0 KiB
Markdown
52 lines
1.0 KiB
Markdown
# Serial Write Line
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Write a string to the [serial](/device/serial) port and start a new line of text
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by writing `\r\n`.
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```sig
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serial.writeLine("");
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```
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### Parameters
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* `line` is the [string](/reference/types/string) to write to the serial port
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### Example: simple serial
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This program writes the word `BOFFO` to the serial port repeatedly.
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```blocks
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basic.forever(() => {
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serial.writeLine("BOFFO");
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basic.pause(5000);
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});
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```
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### Example: streaming data
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This program checks the
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[compass heading](/reference/input/compass-heading) and sends the
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direction to the serial port repeatedly.
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```blocks
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basic.forever(() => {
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let heading = input.compassHeading()
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if (heading < 45) {
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serial.writeLine("N");
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} else if (heading < 135) {
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serial.writeLine("E");
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}
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else if (heading < 225) {
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serial.writeLine("S");
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}
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else {
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serial.writeLine("W");
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}
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})
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```
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### See also
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[serial](/device/serial),
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[serial write number](/reference/serial/write-number),
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[serial write value](/reference/serial/write-value)
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