/*This program test the ultrasonic sensor and show distances
 Serial monitor*/
#include <NewPing.h> //Include newping library in this sketch

/*CONFIGURE SENSOR PINS*/
#define TRIGGER_PIN  12
#define ECHO_PIN     11
#define MAX_DISTANCE 200

 //Creates class NewPing object
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);
 
void setup() {
  Serial.begin(9600);
}
 
void loop() {
  // Waits 1 second to do measures
  delay(1000);
  // Obtains sound travel time measure and store the value in uS
  int uS = sonar.ping_median();
  // Print "distance" to serial monitor
  Serial.print("Distancia: ");
  // Calculate the distance with a constant base
  Serial.print(uS / US_ROUNDTRIP_CM);
  Serial.println("cm");
}