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Waits for the transmission of outgoing serial data to complete. (Prior to Arduino 1.0, this instead removed any buffered incoming serial data.)
flush() inherits from the Stream utility class.
Serial.flush()
Serial: serial port object. See the list of available serial ports for each board on the Serial main page.
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LANGUAGE begin()
LANGUAGE end()
LANGUAGE available()
LANGUAGE read()
LANGUAGE peek()
LANGUAGE print()
LANGUAGE println()
LANGUAGE write()
LANGUAGE SerialEvent()
LANGUAGE stream.flush()
