anchor.diff:  }
   pin.dutyCycle(0);
   pin.close();
  ----
   
  
positive.code: }
  pin.low();
  
  Example for reading and waiting for pin value change:
  [source,java]
  ---
  Gpio gpio = new Gpio(new BeagleboneGpioFactory());
  BinaryInputPin pin = gpio.binaryInputPin(BeagleboneGPio.P9_11);
  System.out.println("value: " + pin.isHigh());
  
negative.code:     pin.waitForEdge(Edge.RISING);
      System.out.println("value2: " + pin.isHigh());
  }
  
  === PWM
  Example for PWM output:
  [source,java]
  Gpio gpio = new Gpio(new BeagleboneGpioFactory());
  PwmOutputPin pin = gpio.pwmOutputPin(BeagleboneGPio.P9_22);
  for (int i=0; i<10; i++) {
  