int pir = 27;
int led = 21;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(pir, INPUT);
  pinMode(led, OUTPUT);
  Serial.println("Hello, ESP32!");
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
  int op = digitalRead(pir);
  Serial.println(op);
  if(op == 1)
  {
    digitalWrite(led, HIGH);
  }
  else
  {
    digitalWrite(led, LOW);
  }
}