motor.h

class Motor {
  private:
    int pinvel, dir1, dir2;
    int vel;

  public:
    void setPinuot(int velocidadPin, int dirPin1, int dirPin2) {
      vel = 0;
      pinvel = velocidadPin;
      dir1 = dirPin1;
      dir2 = dirPin2;
      pinMode(pinvel, OUTPUT);
      pinMode(dir1, OUTPUT);
      pinMode(dir2, OUTPUT);
      off();
    }

    void setVelocidad(int velocidad, bool mover = true) {
      if (vel >= 0) {
        vel = velocidad;
        digitalWrite(dir1, LOW);
        digitalWrite(dir2, HIGH);
      }
      else {
        vel = -velocidad;
        digitalWrite(dir1, HIGH);
        digitalWrite(dir2, LOW);
      }
      if (mover) {
        analogWrite(pinvel, vel);
      }
    }

    void parar() {
      analogWrite(pinvel, 0);
    }

    void arrancar() {
      analogWrite(pinvel, vel);
    }

    void off() {
      vel = 0;
      digitalWrite(dir1, LOW);
      digitalWrite(dir1, LOW);
      analogWrite(pinvel, vel);
    }
};