#include <Servo.h>

const int pirPin = 2;         
const int TrigPin = 9;   
const int EchoPin = 10;   
const int ledPin = 13;              
const int servoPin = 5;             
Servo servoku; 

void setup() {
  pinMode(pirPin, INPUT);        
  pinMode(TrigPin, OUTPUT);  
  pinMode(EchoPin, INPUT);   
  pinMode(ledPin, OUTPUT);            
  servoku.attach(servoPin);        
  }
void loop() {
  int pirSensorValue = digitalRead(pirPin);
  if (pirSensorValue == HIGH) {
    digitalWrite(ledPin, HIGH); 
    rotateServo(90);              
    delay(1000);                  
    digitalWrite(ledPin, LOW);   
  }
  
  int distance = measureDistance();
  if (distance > 0 && distance < 10) {
    rotateServo(0); 
  }
}
void rotateServo(int angle) {
  servoku.write(angle);  
  delay(500);               
}
int measureDistance() {
  digitalWrite(TrigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(TrigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(TrigPin, LOW);

  int duration = pulseIn(EchoPin, HIGH);
  int distance = duration * 0.034 / 2;  
  return distance;
}