#define data_pin 9
#define clock_pin 11
#define latch_pin 10
int s = 500;
void setup() {
  pinMode(data_pin, OUTPUT);
  pinMode(clock_pin, OUTPUT);
  pinMode(latch_pin, OUTPUT);
  digitalWrite(latch_pin,LOW);
}

void loop() {
  for(int i=0;i<8;i++){
    shiftOut(data_pin, clock_pin, LSBFIRST, B10000000>>i);
    digitalWrite(latch_pin, HIGH);
    digitalWrite(latch_pin, LOW);
    delay(s);
  }
  for(int i=0;i<8;i++){
    shiftOut(data_pin, clock_pin, LSBFIRST, B00000001<<i);
    digitalWrite(latch_pin, HIGH);
    digitalWrite(latch_pin, LOW);
    delay(s);
  }
}