自作7セグのテストに使用したArduinoのコード（ライブラリなし）

int number = 0;

//code for combi-22

// 2024/04/12/13:57

//書き方忘れて汚いですごめんなさい

void setup() {

  Serial.begin(9600);

//動作テスト

  pinMode (2, OUTPUT);

  pinMode (3, OUTPUT);

  pinMode (4, OUTPUT);

  pinMode (5, OUTPUT);

  pinMode (6, OUTPUT);

  pinMode (7, OUTPUT);

  pinMode (8, OUTPUT);

  digitalWrite (2, HIGH);

  digitalWrite (3, HIGH);

  digitalWrite (4, HIGH);

  digitalWrite (5, HIGH);

  digitalWrite (6, HIGH);

  digitalWrite (7, HIGH);

  digitalWrite (8, HIGH);

  delay (1000);

}

void loop() {

  if (number == 15) {//数字リセット

    number = 0;

  }

  else {//次の数字

    number++;

  }

    Serial.println(number);//今の数字を出力

    digitalWrite (2, LOW);//リセット

    digitalWrite (3, LOW);

    digitalWrite (4, LOW);

    digitalWrite (5, LOW);

    digitalWrite (6, LOW);

    digitalWrite (7, LOW);

    digitalWrite (8, LOW);

  switch (number) {//0からFまでのケース

    case 0:

      digitalWrite (2, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (6, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 1:

      digitalWrite (7,HIGH);

      digitalWrite (8,HIGH);

      break;

    case 2:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (6, HIGH);

      digitalWrite (7, HIGH);

      break;

    case 3:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 4:

      digitalWrite (3, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 5:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 6:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (6, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 7:

      digitalWrite (2, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 8:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (6, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 9:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 10:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (6, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 11:

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (6, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 12:

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (6, HIGH);

      break;

    case 13:

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (6, HIGH);

      digitalWrite (7, HIGH);

      digitalWrite (8, HIGH);

      break;

    case 14:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (4, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (6, HIGH);

      break;

    case 15:

      digitalWrite (2, HIGH);

      digitalWrite (3, HIGH);

      digitalWrite (5, HIGH);

      digitalWrite (6, HIGH);

      break;

    default://エラー

      digitalWrite (2, HIGH);

        break;

  }

  delay (1500);//1.5秒待つ

  }