#define Led1  5
#define Led2  18
#define Led3  19
#define Led4  21
unsigned int contador = 0;


void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);



  pinMode(Led1, OUTPUT);
  pinMode(Led2, OUTPUT);
  pinMode(Led3, OUTPUT);
  pinMode(Led4, OUTPUT);
  Serial.println("Hello, ESP32!");
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
digitalWrite(Led1, HIGH);
delay(500);
digitalWrite(Led1, LOW);
digitalWrite(Led2, HIGH);
delay(500);
digitalWrite(Led2, LOW);
digitalWrite(Led3, HIGH);
delay(500);
digitalWrite(Led3, LOW);
digitalWrite(Led4, HIGH);
delay(500);
digitalWrite(Led4, LOW);

contador++;
Serial.print("El ciclo se ha completado: ");
Serial.println(contador);
}