#include <LedControl.h>


int DIN_PIN = 12;  
int CLK_PIN = 11;  
int CS_PIN = 10;   


LedControl lc = LedControl(DIN_PIN, CLK_PIN, CS_PIN, 1);  


byte HI[2][8] = {
  { // H
    B01000010,
    B01000010,
    B01000010,
    B01111110,
    B01000010,
    B01000010,
    B01000010,
    B01000010
  },
  { // I
    B01111110,
    B00011000,
    B00011000,
    B00011000,
    B00011000,
    B00011000,
    B00011000,
    B01111110
  }
};


void scrollText() {

  for (int letter = 0; letter < 2; letter++) {
 
    for (int col = 0; col < 8; col++) {
     
      for (int row = 0; row < 8; row++) {
        lc.setRow(0, row, (HI[letter][row] << col) & B11111111); 
      }
      delay(100); 
    }
    
    for (int i = 0; i < 8; i++) {
      lc.setRow(0, i, B00000000);
    }
    delay(100);
  }
}

void setup() {
  lc.shutdown(0, false);        
  lc.setIntensity(0, 15);        
  lc.clearDisplay(0);           
}

void loop() {
  scrollText(); 
}