int disp_array[16][7] = {
  {0, 0, 0, 0, 0, 0, 1}, //0
  {1, 0, 0, 1, 1, 1, 1}, //1
  {0, 0, 1, 0, 0, 1, 0}, //2
  {0, 0, 0, 0, 1, 1, 0}, //3
  {1, 0, 0, 1, 1, 0, 0}, //4
  {0, 1, 0, 0, 1, 0, 0}, //5
  {0, 1, 0, 0, 0, 0, 0}, //6
  {0, 0, 0, 1, 1, 1, 1}, //7
  {0, 0, 0, 0, 0, 0, 0}, //8
  {0, 0, 0, 0, 1, 0, 0}, //9
  {0, 0, 0, 1, 0, 0, 0}, //A
  {1, 1, 0, 0, 0, 0, 0}, //b
  {0, 1, 1, 0, 0, 0, 1}, //C
  {1, 0, 0, 0, 0, 1, 0}, //d
  {0, 1, 1, 0, 0, 0, 0}, //E
  {0, 1, 1, 1, 0, 0, 0}, //F
};

void setup() {
  for (int i = 0; i <= 15; i++) {
    pinMode(i, OUTPUT);
  }
}

void loop() {
  for (int j = 0; j <= 15; j++) {
    digitalWrite(7, disp_array[j][0]);
    digitalWrite(8, disp_array[j][1]);
    digitalWrite(9, disp_array[j][2]);
    digitalWrite(10, disp_array[j][3]);
    digitalWrite(11, disp_array[j][4]);
    digitalWrite(12, disp_array[j][5]);
    digitalWrite(13, disp_array[j][6]);
    for (int i = 0; i <= 15; i++) {
      digitalWrite(0, disp_array[i][0]);
      digitalWrite(1, disp_array[i][1]);
      digitalWrite(2, disp_array[i][2]);
      digitalWrite(3, disp_array[i][3]);
      digitalWrite(4, disp_array[i][4]);
      digitalWrite(5, disp_array[i][5]);
      digitalWrite(6, disp_array[i][6]);
      delay(950);
    }
    delay(1200);
  }
}