#include <LedControl.h>

int DIN = 12;
int CS = 11;
int CLK = 10;

LedControl lc = LedControl(DIN, CLK, CS, 0);

void setup(){

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

void loop(){

byte smile[8] = {0x3C,0x42,0xA5,0x81,0xBD,0x99,0x42,0x3C};
byte oh[8] = {0x3C,0x42,0xA5,0x81,0x99,0x42,0x3C};
byte yee[8] = {0x3C,0x42,0x81,0xA5,0x81,0xBD,0x42,0x3C};
printByte(smile);
delay(1000);
printByte(oh);
delay(1000);
printByte(yee);
delay(1000);
}

void printByte(byte character[]){

  int i = 0;
  for(i=0;i<8;i++)
  {
    lc.setRow(0,i,character[i]);
  }
}