Method checkValidPin

java/libraries/io/src/processing/io/GPIO.java:162–166

Checks if the GPIO pin number can be valid Board-specific classes, such as RPI, assign -1 to pins that carry power, ground and the like. @param pin GPIO pin

(int pin)

   *  @param pin GPIO pin
   */
  protected static void checkValidPin(int pin) {
    if (pin < 0) {
      throw new RuntimeException("Operation not supported on this pin");
    }
  }


  /**