// This example is using 7 Segment common anode

// FOR COMMON CATHODE (DP OFF):
//unsigned char digit[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};

// FOR COMMON ANODE (DP OFF):
unsigned char digit[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};

// FOR COMMON ANODE (DP ON):
// unsigned char digit[]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};

int cnt = 0;

void setup() {
   
  DDRB |= B00001111;  // Pin D8, D9, D10, D11 as output
  DDRD = 0xFF;        // PORTD (pin D0..D7) all as output
  // PORTD = 0X0;        // Pin D0..D7 = LOW
  PORTD = 0xFF;
  // PORTB |= B001111; // activate pin D8 (digit 1) = LOW (aktif low)
  // PORTD = digit[9];   // show digit 9
  // delay(1000);
  PORTB = B000001;
}


void loop() {
  PORTD = digit[cnt%10] ;

  cnt++;
  if (cnt%10 == 1){
    PORTB |= PORTB<<1;

  }
  if (cnt==10000){
    cnt=0;
    PORTB = 1;
  } 
  delay(500);
}