//7 Segments --->> Common Anode
#define SW_UP  9
#define SW_DOWN 10
#define SW_RESET 11
#define BUZZER  12
const int SEGMENT_PIN[7] = {2, 3, 4, 5, 6, 7, 8};

bool digit[10][7] = {
  {1, 1, 1, 1, 1, 1, 0}, //Angka 0
  {0, 1, 1, 0, 0, 0, 0}, //Angka 1
  {1, 1, 0, 1, 1, 0, 1}, //Angka 2
  {1, 1, 1, 1, 0, 0, 1}, //Angka 3
  {0, 1, 1, 0, 0, 1, 1}, //Angka 4
  {1, 0, 1, 1, 0, 1, 1}, //Angka 5
  {1, 0, 1, 1, 1, 1, 1}, //Angka 6
  {1, 1, 1, 0, 0, 0, 0}, //Angka 7
  {1, 1, 1, 1, 1, 1, 1}, //Angka 8
  {1, 1, 1, 1, 0, 1, 1}  //Angka 9
};

int val = 0;

void setup() {
  Serial.begin(9600);

  pinMode(SW_UP, INPUT_PULLUP);
  pinMode(SW_DOWN, INPUT_PULLUP);
  pinMode(SW_RESET, INPUT_PULLUP);
  pinMode(BUZZER, OUTPUT);
  for (int i = 0; i < 7; i++) pinMode(SEGMENT_PIN[i], OUTPUT);
  for (int i = 0; i < 7; i++) digitalWrite(SEGMENT_PIN[i], HIGH);
}

void loop() {
  displayDIGIT(val);

  if (digitalRead(SW_UP) == 0 && val < 9) {
    tone(BUZZER, 2500);
    while (digitalRead(SW_UP) == 0) {}
    noTone(BUZZER);
    val++;
  }
  if (digitalRead(SW_DOWN) == 0 && val > 0) {
    tone(BUZZER, 2400);
    while (digitalRead(SW_DOWN) == 0) {}
    noTone(BUZZER);
    val--;
  }
  if (digitalRead(SW_RESET) == 0) {
    tone(BUZZER, 2300);
    while (digitalRead(SW_RESET) == 0) {}
    noTone(BUZZER);
    val = 0;
  }

}

void displayDIGIT(int num) {
  for (int i = 0; i < 7; i++) {
    digitalWrite(SEGMENT_PIN[i], 1 - digit[num][i]);
  }
}