//Mayra Ascencio Calderón
  //Fab Academy 2021
  //Code    

  const int TriggerPin = 8;   //Trig pin

  const int EchoPin = 9;   //Echo pin
  long Duration = 0;

  void setup() {
  // put your setup code here, to run once:
  pinMode(TriggerPin,OUTPUT);  //Trigger is an output pin
  pinMode(EchoPin,INPUT);  //Echo is an input pin
  Serial.begin(9600);  //Serial output
  }
  void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(TriggerPin, LOW);
  delayMicroseconds(2);
  digitalWrite(TriggerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(TriggerPin, LOW);
    
  Duration = pulseIn(EchoPin,HIGH);
    
  long Distance_cm = Distance(Duration);
    
  Serial.print("Distance = ");
  Serial.print(Distance_cm);
  Serial.println(" cm"); 
    
  delay(10);
  }
  long Distance(long time)
  {
  long DistanceCalc;
  
  DistanceCalc = ((time * 0.034)/2);
    //DistanceCalc = time / 74 / 2;
  return DistanceCalc;  
}