int count = 0;
int data = 1;
byte OK[] = {'O', 'K'};
byte pattern[] = {0, 0, 0, 0, 0, 0, 0,    //D0 黒
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 1, 0, 0, 0,  //D1 Λ Λ
                  0, 0, 1, 0, 1, 0, 0,
                  0, 1, 0, 0, 0, 1, 0,
                  1, 0, 0, 0, 0, 0, 1,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 0, 1, 0, 0,  //D2 ∋ ∈
                  0, 0, 0, 1, 0, 0, 0,
                  0, 0, 1, 1, 1, 1, 0,
                  0, 0, 0, 1, 0, 0, 0,
                  0, 0, 0, 0, 1, 0, 0,
                  0, 1, 0, 0, 0, 0, 0,  //D3 ／ ＼
                  0, 0, 1, 0, 0, 0, 0,
                  0, 0, 0, 1, 0, 0, 0,
                  0, 0, 0, 0, 1, 0, 0,
                  0, 0, 0, 0, 0, 1, 0,
                  0, 0, 0, 0, 0, 1, 0,  //D4 ＼ ／
                  0, 0, 0, 0, 1, 0, 0,
                  0, 0, 0, 1, 0, 0, 0,
                  0, 0, 1, 0, 0, 0, 0,
                  0, 1, 0, 0, 0, 0, 0,
                  0, 1, 0, 0, 0, 1, 0,    //D5 × ×
                  0, 0, 1, 0, 1, 0, 0,
                  0, 0, 0, 1, 0, 0, 0,
                  0, 0, 1, 0, 1, 0, 0,
                  0, 1, 0, 0, 0, 1, 0,
                  0, 0, 0, 0, 0, 0, 0,    //D6 － －
                  0, 0, 0, 0, 0, 0, 0,
                  1, 1, 1, 1, 1, 1, 1,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 0, 0, 0, 0,    //D7 ・ ・
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 1, 0, 0, 0,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 0, 0, 0, 0, 0,
                  0, 0, 1, 1, 1, 0, 0,    //D8 ● ●
                  0, 1, 1, 1, 1, 1, 0,
                  0, 1, 1, 1, 1, 1, 0,
                  0, 1, 1, 1, 1, 1, 0,
                  0, 0, 1, 1, 1, 0, 0,
                  0, 0, 1, 0, 1, 0, 0,  //D9 ❤ ❤
                  0, 1, 1, 1, 1, 1, 0,
                  0, 1, 1, 1, 1, 1, 0,
                  0, 0, 1, 1, 1, 0, 0,
                  0, 0, 0, 1, 0, 0, 0};

               
void setup() {
  // initialize serial:
  Serial.begin(115200);
  for (int pin = 2; pin <= 13; pin++)
  { 
    pinMode(pin, OUTPUT);
  }
}

void loop() {
 int c;
 
  c = Serial.read();
  if (c != -1) {
    if (c =='D') {
     data = Serial.read() - '0';
    }
    else if ((c >='0') && (c <='9')) {
     data = c - '0';
    }   
    else if (c == 'A') {
      if (Serial.read() == 'T') {
         Serial.write(OK, 2);
       }
    }
    else if (c == 'T') {
           Serial.write(OK, 2);
    }
  }
  for (int i = 0; i < 5; i++)
  {
        digitalWrite(i + 9, LOW);
   }
   for (int i = 0; i < 7; i++)
  {
    if (pattern[data*35+count*7+i] == 1)
      digitalWrite(i + 2, LOW);
    else
       digitalWrite(i + 2, HIGH);   
  }
  for (int i = 0; i < 5; i++)
  {
    if (count == i)
       digitalWrite(i + 9, HIGH);
   }
   count++;
   if (count == 5)
   {
     count = 0;
   }
}