const int trigPin = 9;
const int echoPin = 10;

// Define variable for the duration and distance
long duration;
int distance;

void setup() {
  // Initialize serial communication
  Serial.begin(9600);
  
  // Set the trigPin as an OUTPUT and echoPin as an INPUT
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

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

  
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);

  distance = duration * 0.0344 / 2;

  
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");
  delay(500);
}