Face rotation for EXP8226 and Max7219

face_rotation.ino

#include <LedControl.h>

int DIN = 12; // D6
int CS =  15; // D8
int CLK = 14; // D5
unsigned long delaytime=1000;

LedControl lc=LedControl(DIN,CLK,CS,1);

byte smile[8]= {0x3C,0x42,0xA5,0x81,0xA5,0x99,0x42,0x3C};  
byte neutral[8]={0x3C,0x42,0xA5,0x81,0xBD,0x81,0x42,0x3C};  
byte sad[8]= {0x3C,0x42,0xA5,0x81,0x99,0xA5,0x42,0x3C};  

void setup() {
  lc.shutdown(0,false);
  lc.setIntensity(0,8);
  lc.clearDisplay(0);  
}

void loop(){   
  printByte(smile);  
  delay(delaytime);  
  printByte(neutral);  
  delay(delaytime);  
  printByte(sad);    
  delay(delaytime);  
 }  

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