int mass[] = {
  0b11111100,
  0b01100000,
  0b11011010,
  0b11110010,
  0b01100110,
  0b10110110,
  0b10111110,
  0b11100000,
  0b11111110,
  0b11110110,
};

int dig[] = {
0b11111110,
0b11111101,
0b11111011,
0b11110111,
};

unsigned int raz1=0,raz2=0,raz3=0,raz4=0;

int i=0;
unsigned long lastTime;


void setup() {
  DDRD = 0b11111111;
  DDRB = 0b00001111;
  //PORTB = 1 << 4;
}



void loop() {
 

  all_num(1515);

 
    while(i<4){
    if(millis()-lastTime>=500){
    lastTime=millis();
    
    switch(i){
    case 0:
    PORTD=0b00000000;
    PORTB=dig[i];
    PORTD=mass[raz1];
    break;

    case 1:
    PORTD=0b00000000;
    PORTB=dig[i];
    PORTD=mass[raz2];
    break; 

    case 2:
    PORTD=0b00000000;
    PORTB=dig[i];
    PORTD=mass[raz3];
    break;  

    case 3:
    PORTD=0b00000000;
    PORTB=dig[i];
    PORTD=mass[raz4];
    break;

    }
  i++;
  if(i>=4){i=0;}
  }
  }
/*
  PORTD=0b00000000;
  PORTB=dig[i];
  PORTD=mass[raz1];
  if(i==1){
    
    PORTD=mass[raz2];
  }
  if(i==2){
    PORTD=mass[raz3];
  }
  if(i==3){
    PORTD=mass[raz4];
  }
  i++;
  if(i>3){i=0;}
  }
*/
}
/*
  if(i<10){
  for(;i<10;i++){
    del(1000);
    PORTD=mass[i];

  }
  }else if (i>=10){i=0;}

  
}
*/


void all_num(int razbivka){
  raz1=razbivka/1000;
  raz2=razbivka%1000/100;
  raz3=razbivka%100/10;
  raz4=razbivka%10;
}





void del(int TimeDel){
  unsigned long curTime=millis();
  TimeDel+=curTime;
  while(curTime<TimeDel){
    curTime=millis();
  }
}