# define CYCLE_LENGTH 10000 //длительность полного цикла перебора bar_graph

void setup() 
{
  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
}

void loop() 
{
  int step = (millis() % CYCLE_LENGTH)/(CYCLE_LENGTH/20);
  int bit_9 = step > 0 ? 0 : 1;
  int bit_8 = step > 1 && step < 19 ? 0 : 1;
  int bit_7 = step > 2 && step < 18 ? 0 : 1;
  int bit_6 = step > 3 && step < 17 ? 0 : 1;
  int bit_5 = step > 4 && step < 16 ? 0 : 1;
  int bit_4 = step > 5 && step < 15 ? 0 : 1;
  int bit_3 = step > 6 && step < 14 ? 0 : 1;
  int bit_2 = step > 7 && step < 13 ? 0 : 1;
  int bit_1 = step > 8 && step < 12 ? 0 : 1;
  int bit_0 = step > 9 && step < 11 ? 0 : 1;

 
  digitalWrite(0, bit_0);
  digitalWrite(1, bit_1);
  digitalWrite(2, bit_2);
  digitalWrite(3, bit_3);
  digitalWrite(4, bit_4);
  digitalWrite(5, bit_5);
  digitalWrite(6, bit_6);
  digitalWrite(7, bit_7);
  digitalWrite(8, bit_8);
  digitalWrite(9, bit_9);
}