#include <Adafruit_NeoPixel.h>

//quantidade de leds
#define numLed 3
//pino (porta de saida )
#define pino 26 
//variaveis para a intensidade da cor 
int red = 0;
int green = 0;
int blue = 0;
//definir objeyo biblioteca
Adafruit_NeoPixel pixel = Adafruit_NeoPixel( numLed,26, NEO_GRB + NEO_KHZ800);

void setup() {
 pixel.begin();
}

void loop() {
  for (int x = 0; x < numLed; x++)  {
    red = random (200,255) ;
    green = random (170,255) ;
    blue = random (100,255) ;

    pixel.setPixelColor (x, pixel.Color(red, green, blue));
    pixel.show();
    delay(300);
    //desligar o pixel
    pixel.setPixelColor (x,pixel.Color (0,0,0));
  }
}