void setup()
{
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(27, OUTPUT);
  pinMode(26, OUTPUT);
  pinMode(25, OUTPUT);
  pinMode(33, OUTPUT);
  pinMode(32, OUTPUT);
  
}

void binary(int values[],int number)
{
  for(int i=0;i<8;i++)
  {
    values[i]=number%2;
    number=number/2; 
  }
}

void loop()
{
  int number=0;
  int values[10];

  while(number<255)
  {
    binary(values,number);
    digitalWrite(13,values[7]);
    digitalWrite(12,values[6]);
    digitalWrite(14,values[5]);
    digitalWrite(27,values[4]);
    digitalWrite(26,values[3]);
    digitalWrite(25,values[2]);
    digitalWrite(33,values[1]);
    digitalWrite(32,values[0]);

    delay(1000);
    number++;
  }
}