#include <Adafruit_NeoPixel.h>

#define PIN          6 // Pin de control
#define NUMPIXELS   32 // Numero de pixels
#define DELAYVAL    30 // Pausa entre pixel

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

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

void loop(){

  int j = 0;
  int k = 255;
  int l = 255;
  while(1){
  	for(int i = 0;i <= NUMPIXELS; i++){
    j+=10;
    k-=10;
    if(j >= 255) j = 255;
    if(k <= 0) k = 0;
    
  	pixels.setPixelColor(i, pixels.Color(j,l,k));
  	pixels.show();
    delay(DELAYVAL);
  }

  for(int i = 0; i <= NUMPIXELS;i++){
	j-=10;
    k+=10;
    if(j <= 0) j = 0;
    if(k >= 255) k = 255;
    
    pixels.setPixelColor(i,pixels.Color(j,l,k));
    pixels.show();
    delay(DELAYVAL);
  }
    l-=10;
    if(l <= 0) l = 255;
 }
}