//importamos librerias
#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>

//Pin de datos
#define PIN 15

//Declaramos objeto matriz de leds
Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(8,8,4,1,PIN, NEO_TILE_TOP + NEO_TILE_LEFT + NEO_TILE_COLUMNS + NEO_TILE_PROGRESSIVE + NEO_MATRIX_TOP + NEO_MATRIX_LEFT + NEO_MATRIX_ZIGZAG, NEO_GRB + NEO_KHZ800);

//Declaramos una lista de colores
const uint16_t colores [] = {matrix.Color(255, 0 , 0),//Rojo
                             matrix.Color(0, 255 , 0),//verde
                             matrix.Color(0, 0 , 255)};//azul


void setup(){
  //inicio la matrix
  matrix.begin();
  matrix.setBrightness(40);
  matrix.setTextColor(colores[0]);
}
 
int x = matrix.width();//ancho de la matrix
int pass = 0;

void loop(){
//limpiar la matrix
  matrix.fillScreen (0);
  matrix.setCursor(x, 0);
  matrix.print("Hola Mundo");
  if(--x  < -32){
    x = matrix.width();
    if(++ pass >=3) pass = 0;
    matrix.setTextColor(colores[pass]);
  }
  matrix.show();
  delay(100);
}