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Looks for the next valid integer in the incoming serial. The function terminates if it times out (see Serial.setTimeout()).

Serial.parseInt() inherits from the Stream utility class.

In particular:

  • Initial characters that are not digits or a minus sign, are skipped;

  • Parsing stops when no characters have been read for a configurable time-out value, or a non-digit is read;

  • If no valid digits were read when the time-out (see Serial.setTimeout()) occurs, 0 is returned;


Serial.parseInt(char skipChar)


Serial: serial port object. See the list of available serial ports for each board on the Serial main page.
skipChar: used to skip the indicated char in the search. Used for example to skip thousands divider.


long : the next valid integer

See also