#include <ESP32Servo.h>

const int irSensorPin = 4;
const int servoPin = 18;
const int threshold = 500; // Threshold value for IR sensor detection
const int openAngle = 180; // Servo motor open position
const int closeAngle = 0; // Servo motor close position
const unsigned long doorOpenTime = 5000; // Time (in ms) the door remains open

Servo myServo;
bool doorOpen = false;
unsigned long lastDetectedTime = 0;

void setup() {
  Serial.begin(115200);
  myServo.attach(servoPin);
  myServo.write(closeAngle);
  Serial.println("Door is closed");
}

void loop() {
  int irValue = analogRead(irSensorPin);

  if (irValue > threshold) {
    if (!doorOpen) {
      myServo.write(openAngle);
      Serial.println("Door is open");
      doorOpen = true;
      lastDetectedTime = millis();
    }
  } else if (doorOpen && (millis() - lastDetectedTime > doorOpenTime)) {
    myServo.write(closeAngle);
    Serial.println("Door is closed");
    doorOpen = false;
  }

  delay(100);
}