const char digitPatterns[10] = {
  0b00111111, // 0
  0b00000110, // 1
  0b01011011, // 2
  0b01001111, // 3
  0b01100110, // 4
  0b01101101, // 5
  0b01111101, // 6
  0b00000111, // 7
  0b01111111, // 8
  0b01101111  // 9
};
void setup() {
  // put your setup code here, to run once:
  volatile char *direction_f,*output_f;
  volatile long long i,j,k;
  direction_f=0x30;
  *direction_f=0xff;
  output_f=0x31;
  int number=946;
  while(number!=0){
    int lastdigit=number%10;
  *output_f= digitPatterns[lastdigit];
  number=number/10;
   }

}

void loop() {
  // put your main code here, to run repeatedly:

}