void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(2, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
   // this speeds up the simulation
  digitalWrite(2,1);
  delay(500)
  digitalWrite(2,0);
  delay(500);
}