int datapin = 2; 
int clockpin = 3;
int latchpin = 4;

byte data = 0;


void setup()
{
  pinMode(datapin, OUTPUT);
  pinMode(clockpin, OUTPUT);  
  pinMode(latchpin, OUTPUT);
}


void loop()
{
  binaryCount();
}

void binaryCount() {
  int delayTime = 1000;

  shiftOut(datapin, clockpin, MSBFIRST, data);

  digitalWrite(latchpin, HIGH);
  digitalWrite(latchpin, LOW);

  data++;

  delay(delayTime);
}