code: public static void main(String[] args) throws InterruptedException {
  		HCSR04 sonar = new HCSR04((short) 2, (short) 4);
  
  		Thread.sleep(1000);
  
  		while (true) {
  			System.out.println("Get distance");
  			double distance = sonar.getDistance();
  			System.out.println("Distance: " + distance);
  
  			Thread.sleep(5000);
  		}
  	}
docs: ! [Interesting]