6학년 1반

int segmentLEDs[] = {2, 3, 4, 5, 6, 7, 8, 9};
int segmentLEDsNum = 8;

int digitForNum[10][8] = {
  {0, 0, 0, 0, 0, 0, 1, 1}, //0
  {1, 0, 0, 1, 1, 1, 1, 1}, //1
  {0, 0, 1, 0, 0, 1, 0, 1}, //2
  {0, 0, 0, 0, 1, 1, 0, 1}, //3
  {1, 0, 0, 1, 1, 0, 0, 1}, //4
  {0, 1, 0, 0, 1, 0, 0, 1}, //5
  {0, 1, 0, 0, 0, 0, 0, 1}, //6
  {0, 0, 0, 1, 1, 1, 1, 1}, //7
  {0, 0, 0, 0, 0, 0, 0, 1}, //8
  {0, 0, 0, 0, 1, 0, 0, 1}  //9
};
                                                                
void setup() {
  for (int i = 0 ; i < segmentLEDsNum ; i++) {
    pinMode(segmentLEDs[i], OUTPUT);
  }
}

void loop() {
  for (int i = 0 ; i < 10 ; i++) {
    for (int j = 0 ; j < segmentLEDsNum ; j++) {
      digitalWrite(segmentLEDs[j], digitForNum[i][j]);
    }
    delay(1000);
  }
}