#define LED 20
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32-S2!");
  pinMode(LED, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(LED, HIGH);
  delay(1000); // this speeds up the simulation
  digitalWrite(LED, LOW);
  delay(1000);
}

//method 2 works only for arduino
// void setup() {
//   pinMode(LED_BUILTIN, OUTPUT);
// }

// void loop() {
//   digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
//   delay(1000);
// }