#include <ESP32Servo.h> //includes library
const int servoPin = 15;
Servo servo;
int pos = 0;

#define pir 4
#define led 18
int val = 0;

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(pir, INPUT);
  pinMode(led, OUTPUT);
  servo.attach(servoPin, 500, 2400);

}

void loop() {
  val = digitalRead(pir);

  if (val == 1){
    digitalWrite(led,HIGH);
    servo.write(180); //180 deg 

    delay(1000);
  }
  else{
    digitalWrite(led,LOW);
    servo.write(0); //0 deg

  }
  delay(100);
}