#include <Servo.h>

const int irSensorPin = 2;
const int servoPin = 9;

Servo myServo;  
void setup() {
  pinMode(irSensorPin, INPUT); 

  myServo.attach(servoPin); 
  Serial.begin(9600);            
  }

  void loop() {
    int irSensorValue = digitalRead(irSensorPin); 

    if (irSensorValue == HIGH) {
        rotateServo(90); 
        Serial.println("Motion detected!"); 
        } 
        else {
            rotateServo(0);   
              }
                
                  delay(500);  // Delay to avoid rapid toggling and to stabilize readings
                  }

                  void rotateServo(int angle) {
                    myServo.write(angle); 
                    delay(1000);           
                    }