#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);
}

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