byte outs[2];

#define clock 8
#define data 6
#define latch 7
#define oe 5

void setup() {
  pinMode(clock, OUTPUT);
  pinMode(data, OUTPUT);
  pinMode(latch, OUTPUT);
  pinMode(oe, OUTPUT);
  digitalWrite(oe, HIGH);
  
  outs[0] = 0b11111111; outs[1] = 0b00000000;
  func_out();
  
  digitalWrite(oe, LOW);
  delay(100);
}
 
void loop() {
  outs[0] = 0b11110000; outs[1] = 0b00001111;
  func_out();
  delay(3000);  
  outs[0] = 0b00001111; outs[1] = 0b11110000;
  func_out();
  delay(3000);    
  outs[0] = 0b11110000; outs[1] = 0b00001111;
  func_out();
  delay(3000);  
  outs[0] = 0b00001111; outs[1] = 0b11110000;
  func_out();
  delay(3000);  
  outs[0] = 0b11111111; outs[1] = 0b00000000;
  func_out();
  delay(2000);
  outs[0] = 0b11111110; outs[1] = 0b10000000;
  func_out();
  delay(1000);  
  outs[0] = 0b11111101; outs[1] = 0b01000000;
  func_out();
  delay(1000); 
  outs[0] = 0b11111011; outs[1] = 0b00100000;
  func_out();
  delay(1000);
  outs[0] = 0b11110111; outs[1] = 0b00010000;
  func_out();
  delay(1000);
  outs[0] = 0b11101111; outs[1] = 0b00001000;
  func_out();
  delay(1000);
  outs[0] = 0b11011111; outs[1] = 0b00000100;
  func_out();
  delay(1000);
  outs[0] = 0b10111111; outs[1] = 0b00000010;
  func_out();
  delay(1000);
  outs[0] = 0b01111111; outs[1] = 0b00000001;
  func_out();
  delay(1000);  
}

void func_out(){
  digitalWrite(latch, LOW);
  shiftOut(data, clock, LSBFIRST, outs[1]);
  shiftOut(data, clock, LSBFIRST, outs[0]);
  digitalWrite(latch, HIGH);
}