Arduino IDE Coding

Arduino IDE Coding

int trigPin = 9;
int echoPin = 10;

long duration;
int distance;

void setup() {
  Serial.begin(9600);
  
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop() {

  // Send ultrasonic pulse
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);

  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);

  digitalWrite(trigPin, LOW);

  // Read echo time
  duration = pulseIn(echoPin, HIGH);

  // Calculate distance
  distance = duration * 0.034 / 2;

  // Display distance
  Serial.print("Distance = ");
  Serial.print(distance);
  Serial.println(" cm");

  delay(500);
}