Blind stick tinker orbits

const int trigPin = 3;

const int echoPin = 2;

long duration;

int distinCM;

// Function to measure distance using the ultrasonic sensor

int distance() {

  digitalWrite(trigPin, LOW);

  delayMicroseconds(2);

  digitalWrite(trigPin, HIGH);

  delayMicroseconds(10);

  digitalWrite(trigPin, LOW);

  duration = pulseIn(echoPin, HIGH);

  distinCM = duration * 0.034 / 2;

  return distinCM;

}

void setup() {

  pinMode(trigPin, OUTPUT);

  pinMode(echoPin, INPUT);

  pinMode(7, OUTPUT); // Pin for first LED

  pinMode(8, OUTPUT); // Pin for second LED

  pinMode(9, OUTPUT); // Pin for third LED

  Serial.begin(9600); // Start the serial communication for debugging

}

void loop() {

  int dist = distance();

  Serial.print("Distance: ");

  Serial.print(dist);

  Serial.println(" cm");

  if (dist <= 10) { // Check if the distance is 10 cm or less

    digitalWrite(7, HIGH);

    digitalWrite(8, HIGH);

    digitalWrite(9, HIGH);

  } else {

    digitalWrite(7, LOW);

    digitalWrite(8, LOW);

    digitalWrite(9, LOW);

  }

  delay(500); // Add a delay to avoid overwhelming the sensor and serial monitor

}