SmartDustbin

#include <Servo.h>

Servo myServo;

// Ultrasonic sensor pins

const int trigPin = 5;

const int echoPin = 6;

// Distance threshold (in cm)

const int distanceThreshold = 10;

void setup() {

  Serial.begin(9600);

  myServo.attach(9);         // Connect servo to pin 6

  pinMode(trigPin, OUTPUT);

  pinMode(echoPin, INPUT);

  myServo.write(0);          // Initial servo position

}

void loop() {

  long duration;

  int distance;

  // Send ultrasonic pulse

  digitalWrite(trigPin, LOW);

  delayMicroseconds(2);

  digitalWrite(trigPin, HIGH);

  delayMicroseconds(10);

  digitalWrite(trigPin, LOW);

  // Read the echo time

  duration = pulseIn(echoPin, HIGH);

  // Calculate distance in cm

  distance = duration * 0.034 / 2;

  Serial.print("Distance: ");

  Serial.print(distance);

  Serial.println(" cm");

  // Rotate servo if object is detected

  if (distance > 0 && distance < distanceThreshold) {

    myServo.write(90); // Rotate to 90 degrees

  } else {

    myServo.write(0);  // Return to 0 degrees

  }

  delay(500);

}