#include <FastLED.h>
#define NUM_LEDS 16
#define LED 5
CRGB leds[NUM_LEDS];

void vermelho(){
  for(int i=0; i<NUM_LEDS; i++){
    leds[i] = CRGB::Red;
    FastLED.show();
  }
}


void setup() {
  FastLED.addLeds<NEOPIXEL, LED>(leds, NUM_LEDS); //inicializa leds
}

void loop() {
  vermelho();
  delay(500);
  for(int i=0;i<NUM_LEDS;i++){
    leds[i]~= CRGB::Black;
    FastLED.show();
  }
  delay(500);
}