#define LED_PIN 13

class Led {
    // The new code with the properties
    private:
        byte pin;
    public:
        Led(){}

        Led(byte pin)
        {
            this->pin = pin;
        }

        void init(){
          pinMode(pin, OUTPUT);
        }

        void init(byte defaulState){
          init();
          if (defaulState == HIGH){
            on();
          }
          else {
            off();
          }
        }

        void on(){
          digitalWrite(pin, HIGH);
        }

        void off(){
          digitalWrite(pin, LOW);
        }
};

Led led(LED_PIN);

void setup() {
  led.init();
}

void loop() {
  led.on();
  delay(500);
  led.off();
  delay(500);
}