#include <Ultrasonic.h>

/*
 * Pass as a parameter the trigger and echo pin, respectively,
 * or only the signal pin (for sensors 3 pins), like:
 * Ultrasonic ultrasonic(13);
 */

Ultrasonic ultrasonic(9, 8);

int distance;

void setup() {
  Serial.begin(9600);
}

void loop() {
  // Pass INC as a parameter to get the distance in inches
  distance = ultrasonic.read();
  
  Serial.print("Distance in CM: ");
  Serial.println(distance);
  delay(1000);
}