 
 long duration, distance;
 void setup() {
+  Serial.begin(9600);   
   /*
   Setup of the echo & trig of everysensor.
   */

  
  digitalWrite(trig,LOW);
  
  //Claculate Duration of pulse.
  duration = pulseIn(echo,HIGH);
  printReadings("Duration", duration);
  

}

void loop() {
  printString("Testing");
  estimateDistance(S1trig, S1echo);
  delay(10000);
}

void printReadings(String label, long value){
  String phrase = label+": "+value;
  printString(phrase);
}
void printString(String phrase){
  Serial.println(phrase);
  Serial.println(" ");
}
/*
Estimate the distance received from the ultrasonic sensor.
*/
