int latchPin= 5;
int clockPin = 6;
int dataPin = 4;

void setup() {
  pinMode(dataPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(latchPin, OUTPUT);
}

void loop() {
  shiftOut(dataPin, clockPin, LSBFIRST, B10101010);
  digitalWrite(latchPin,HIGH);
  digitalWrite(latchPin,LOW)
  delay(380);
  shiftOut(dataPin, clockPin, LSBFIRST, B01010101);
  digitalWrite(latchPin, HIGH);
  digitalWrite(latchPin, LOW);
  delay(380);
}