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isSpace()

Analyse if a char is a white-space character. Returns true if the argument is a space, form feed ('\f'), newline ('\n'), carriage return ('\r'), horizontal tab ('\t'), or vertical tab ('\v'). isSpace(thisChar)
thisChar: variable. Allowed data types: char. true: if thisChar is a white-space character.

		
if (isSpace(myChar)) {  // tests if myChar is a white-space character
  Serial.println("The character is white-space");
}
else {
  Serial.println("The character is not white-space");
}