int trigPin = 14; // Define pin for trigger
int echoPin = 27; // Define pin for echo
void setup() {
 pinMode(trigPin, OUTPUT); // Set trigger pin as output
 pinMode(echoPin, INPUT); // Set echo pin as input
 Serial.begin(115200); // Start serial communication
}
void loop() {
 digitalWrite(trigPin, LOW);
 delayMicroseconds(2);
 digitalWrite(trigPin, HIGH); // Send ultrasonic pulse
 delayMicroseconds(10);
 digitalWrite(trigPin, LOW);
 long duration = pulseIn(echoPin, HIGH); // Measure the echo time
 int distance = duration * 0.034 / 2; // Calculate distance in cm
 Serial.print("Distance: ");
 Serial.print(distance);
 Serial.println(" cm");
 delay(500);
}