#include <Servo.h>

#define MOTION_SENSOR_PIN 2 // Define the pin for the motion sensor
#define SERVO_PIN 9         // Define the pin for the servo motor

Servo doorServo;            // Create a servo object

void setup() {
  doorServo.attach(SERVO_PIN); // Attach the servo to the specified pin
  pinMode(MOTION_SENSOR_PIN, INPUT); // Set the motion sensor pin as input
  doorClosed();             // Ensure the door is closed initially
}

void loop() {
  if (digitalRead(MOTION_SENSOR_PIN) == HIGH) { // If motion detected
    openDoor();            // Open the door
    delay(5000);           // Wait for 5 seconds (adjust as needed)
    closeDoor();           // Close the door
  }
}

void openDoor() 
{
  doorServo.write(90);     // Open the door by rotating servo to 90 degrees
}

void closeDoor()
 {
  doorServo.write(0);      // Close the door by rotating servo to 0 degrees
}

void doorClosed() 
{
  doorServo.write(0);      // Ensure the door is closed by default
}