const int trigPin = 5;
const int echoPin = 18;

void setup() {
  // Initialize serial communication
  Serial.begin(115200);
  
  // Configure the pins
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop() {
  // Clear the trigPin by setting it LOW
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);

  // Trigger the sensor by setting trigPin HIGH for 10 microseconds
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  // Read the echoPin and calculate the duration of the echo
  long duration = pulseIn(echoPin, HIGH);

  // Calculate the distance (duration / 2) / 29.1
  int distance = duration * 0.034 / 2;

  // Print the distance to the serial monitor
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");

  // Delay before next reading
  delay(1000);
}