int buzzer = 2;
int echo = 3;
int triger = 4;
long distance, duration;

void setup() {
  Serial.begin(115200);
  pinMode(buzzer, OUTPUT);
  pinMode(echo, INPUT);
  pinMode(triger, OUTPUT);
}

void loop() {
  Distance();
  Serial.println(distance);
}

void Distance()
{
      digitalWrite(triger, LOW);
  delayMicroseconds(2);
  digitalWrite(triger, HIGH);
  delayMicroseconds(10);
  digitalWrite(triger, LOW);

  duration = pulseIn(echo, HIGH);
  // Calculating the distance
  distance = duration * 0.034 / 2;
  // Prints the distance on the Serial Monitor
  Serial.print("Distance: ");
  Serial.println(distance);
  return distance;

}