// defines pins numbers

#define trigPin 12
#define echoPin 13
#define ledPin  14

// defines variables
long duration;
int distance;

boolean triggered = false;

double activateDistance = 10;

void setup() {
  pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
  pinMode(echoPin, INPUT); // Sets the echoPin as an Input
  pinMode(ledPin, OUTPUT);

  Serial.begin(9600); // Starts the serial communication

}

void loop()
{
  // Clears the trigPin
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);

  // Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, LOW);
delayMicroseconds(5);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);



  // Reads the echoPin, returns the sound wave travel time in microseconds
  duration = pulseIn(echoPin, HIGH);

  // Calculating the distance
  distance = duration * 0.034 / 2;

  // Prints the distance on the Serial Monitor
  if (distance <= activateDistance)
  {
    digitalWrite(ledPin, HIGH);
    Serial.print("GOT");
    delay(1000);
    digitalWrite(ledPin,LOW);
  }else{
    digitalWrite(ledPin,LOW);
  }

}