const int NUM_LEDS = 9;
int redPins[NUM_LEDS] = {23,21,18,17,4,32,25,27,12};
int bluePins[NUM_LEDS] = {22,19,5,16,2,33,26,14,13};


void setup() {
  for (int i = 0; i < NUM_LEDS; i++) {
    pinMode(redPins[i], OUTPUT);
    pinMode(bluePins[i], OUTPUT);
  }
}

void loop() {
  prender_apagar(0, 255);
  prender_apagar(255, 0);
  
  
}

void prender_apagar(int azules, int rojos){
  for (int i = 0; i < NUM_LEDS;i++){
    analogWrite(bluePins[i],azules);
    analogWrite(redPins[i],rojos);
  }

  delay(1000);
}