Arduino koodi 2

int D1 = 13;
int D2 = 12;
int LT = 11;
int BL = 10;
int LE = 9;
int D3 = 8;
int D0 = 7;

void setup() {
   pinMode(D1, OUTPUT);
   pinMode(D2, OUTPUT);
   pinMode(LT, OUTPUT);
   pinMode(BL, OUTPUT);
   pinMode(LE, OUTPUT);
   pinMode(D3, OUTPUT);
   pinMode(D0, OUTPUT);
}

void loop() {


  //normal mode
  digitalWrite(LT,HIGH);
  digitalWrite(BL,HIGH);
  digitalWrite(LE,LOW);

  // show nunmbers
  int laske;
  for(laske=0; laske <10; laske++)
  {
    show_number(laske);
    delay(1000);
  }



}

void show_number(int number) {

  digitalWrite(D0,number & 1);
  digitalWrite(D1,number & 2);
  digitalWrite(D2,number & 4);
  digitalWrite(D3,number & 8);

}