void setup() {
  // put your setup code here, to run once:
  volatile char *dir=0x30;
  *dir=0xFF;
  dir=0x107;
  *dir=0xFF;

}

void loop() {
  // put your main code here, to run repeatedly:
  
  
  volatile char *out_one_digit=0x31;
  volatile char *out_ten_digit=0x108;
  volatile char number[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x67};//without dot
  //volatile char number[]={0xBF,0x86,0xDB,0xCF,0xE6,0xED,0xFD,0x87,0xFF,0xE7};//with dot
  volatile long i,count,tens_count;

  for(tens_count=9;tens_count>=0;tens_count--){
    *out_ten_digit=number[tens_count];
    for(count=9;count>=0;count--){
      *out_one_digit=number[count];
      for(i=0;i<100000;i++);
    }    
    //*out_ten_digit=number[tens_count];
    //for(i=0;i<10000;i++);
    //*out_one_digit=0;
    //*out_ten_digit=0;
    //for(i=0;i<200000;i++);
  }
  
  

}