#define PIN_BLINK 13
#define CONFIG_BLINK    pinMode(PIN_BLINK, OUTPUT)
#define ENCENDER_BLINK  digitalWrite(PIN_BLINK, HIGH)
#define APAGAR_BLINK    digitalWrite(PIN_BLINK, LOW)
#define MS_ESPERA_BLINK 250

#define PIN_LED1 0
#define PIN_LED2 1
#define PIN_LED3 2
#define PIN_LED4 3
#define PIN_LED5 4
#define PIN_LED6 5
#define PIN_LED7 6
#define PIN_LED8 7
#define CANT_LED 8

const int pin_led[]={PIN_LED1, PIN_LED2,PIN_LED3,PIN_LED4,PIN_LED5,PIN_LED6,PIN_LED7,PIN_LED8};

#define CONFIG_LED(X)           pinMode(X, OUTPUT)
#define ENCENDER_LED(X)         digitalWrite(X, HIGH)
#define APAGAR_LED(X)           digitalWrite(X, LOW)
#define AJUSTAR_LED(X, estado)  digitalWrite(X, estado)

void setup() {
  unsigned char i;

  CONFIG_BLINK;

  for(i=0; i<CANT_LED; i++) CONFIG_LED(i);
  }

void loop()
  {
  Blink();
  EfectoBarra();
  }

void EfectoBarra(void)
  {
  static unsigned long millis_ant=0;
  static unsigned char led=0, i;

  if(millis() - millis_ant < 500) return;
  millis_ant=millis();

  if(led==CANT_LED)
    {
    for(i=0; i<CANT_LED; i++) APAGAR_LED(i);
    led=0;
    return;
    }

  ENCENDER_LED(led);
  led++;

  }

void Blink(void)
  {
  static unsigned long millis_ini=0;
  static bool estado_led=0; //Se podría declarar bool

  //ESPERA POR EL EVENTO
  if( (millis() - millis_ini) < MS_ESPERA_BLINK ) return; //Sale
  millis_ini=millis();

  //ACCIÓN
  estado_led = !estado_led;
  if(estado_led) ENCENDER_BLINK;
  else           APAGAR_BLINK;
  }