#include <Servo.h>

#define IR_SENSOR_PIN 34      // Analog pin connected to IR sensor output
#define SERVO_PIN 15          // PWM pin connected to Servo signal
#define OPEN_ANGLE 180        // Servo angle to open door
#define CLOSE_ANGLE 0         // Servo angle to close door
#define OPEN_TIME 5000        // Time to keep door open (milliseconds)

Servo myServo;

void setup() {
  Serial.begin(115200);
  myServo.attach(SERVO_PIN);
  myServo.write(CLOSE_ANGLE); // Start with door closed
}

void loop() {
  int sensorValue = analogRead(IR_SENSOR_PIN);

  if (sensorValue > 1000) {  // Adjust threshold based on IR sensor specs
    // Person detected
    myServo.write(OPEN_ANGLE); // Open the door
    delay(OPEN_TIME); // Keep the door open for a specified time
    myServo.write(CLOSE_ANGLE); // Close the door
  }
  
  delay(1000); // Check every second
}