#define a 13
#define b 12
#define c 11
#define d 10
#define e 9
#define f 8
#define g 7
#define dp 6
#define com1 4
#define com2 5
#define pot A7  // Potentiometer connected to analog pin A0

void setup() {
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(dp, OUTPUT);
  pinMode(com1, OUTPUT);
  pinMode(com2, OUTPUT);
  pinMode(pot, INPUT);
}

void angka(byte nomor) {
  switch (nomor) {
    case 0:
      digitalWrite(a, LOW);
      digitalWrite(b, LOW);
      digitalWrite(c, LOW);
      digitalWrite(d, LOW);
      digitalWrite(e, LOW);
      digitalWrite(f, LOW);
      digitalWrite(g, HIGH);
      break;
    case 1:
      digitalWrite(a, HIGH);
      digitalWrite(b, LOW);
      digitalWrite(c, LOW);
      digitalWrite(d, HIGH);
      digitalWrite(e, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, HIGH);
      break;
    case 2:
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(c, HIGH);
    digitalWrite(d, LOW);
    digitalWrite(e, LOW);
    digitalWrite(f, HIGH);
    digitalWrite(g, LOW);
    break;
    case 3:
    digitalWrite(a, LOW);
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(e, HIGH);
    digitalWrite(f, HIGH);
    digitalWrite(g, LOW);
    break;
    case 4:
    digitalWrite(a, HIGH);
    digitalWrite(b, LOW);
    digitalWrite(c, LOW);
    digitalWrite(d, HIGH);
    digitalWrite(e, HIGH);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);
    break;
    case 5:
    digitalWrite(a, LOW);
    digitalWrite(b, HIGH);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(e, HIGH);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);
    break;
    case 6:
    digitalWrite(a, LOW);
    digitalWrite(b, HIGH);
    digitalWrite(c, LOW);
    digitalWrite(d, LOW);
    digitalWrite(e, LOW);
    digitalWrite(f, LOW);
    digitalWrite(g, LOW);
    break;
    case 7:
      digitalWrite(a, LOW);
      digitalWrite(b, LOW);
      digitalWrite(c, LOW);
      digitalWrite(d, HIGH);
      digitalWrite(e, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, HIGH);
      break;
    case 8:
      digitalWrite(a, LOW);
      digitalWrite(b, LOW);
      digitalWrite(c, LOW);
      digitalWrite(d, LOW);
      digitalWrite(e, LOW);
      digitalWrite(f, LOW);
      digitalWrite(g, LOW);
      break;
    case 9:
      digitalWrite(a, LOW);
      digitalWrite(b, LOW);
      digitalWrite(c, LOW);
      digitalWrite(d, LOW);
      digitalWrite(e, HIGH);
      digitalWrite(f, LOW);
      digitalWrite(g, LOW);
      break;
  }
}

void displayNumber(int num) {
  int tens = num / 10;
  int units = num % 10;

  // Display angka puluhan
  angka(tens);
  digitalWrite(com1, HIGH);
  delay(5);
  digitalWrite(com1, LOW);

  // Display angka satuan
  angka(units);
  digitalWrite(com2, HIGH);
  delay(5);
  digitalWrite(com2, LOW);
}

void loop() {
  int potValue = analogRead(pot);
  Serial.println(potValue);

  if (potValue < 511) {
    displayNumber(6);
  } else if (potValue < 1023) {
    displayNumber(21);
  }

}