const byte Led_A = 2;
const byte Led_B = 3;
const byte Led_C = 4;
const byte Led_D = 5;
const byte Led_E = 6;
const byte Led_F = 7;
const byte Led_G = 8;
const byte PB_1 = 14;
const byte PB_2 = 15;

int Nilai_Angka=0;

uint8_t digits[] = {
  0b11000000, // 0
  0b11111001, // 1
  0b10100100, // 2 
  0b10110000, // 3
  0b10011001, // 4
  0b10010010, // 5
  0b10000010, // 6
  0b11111000, // 7
  0b10000000, // 8
  0b10011000, // 9
};

void setup() {
  Serial1.begin(115200);
  pinMode(Led_A, 1);
  pinMode(Led_B, 1);
  pinMode(Led_C, 1);
  pinMode(Led_D, 1);
  pinMode(Led_E, 1);
  pinMode(Led_F, 1);
  pinMode(Led_G, 1);
  pinMode(PB_1, INPUT_PULLUP);
  pinMode(PB_2, INPUT_PULLUP);
  digitalWrite(Led_A,1);
  digitalWrite(Led_B,1);
  digitalWrite(Led_C,1);
  digitalWrite(Led_D,1);
  digitalWrite(Led_E,1);
  digitalWrite(Led_F,1);
  digitalWrite(Led_G,1);
  delay(1000);
  Serial1.println("Mulai");
  Serial1.println(Nilai_Angka);
}

void loop() {
  // digitalWrite(Led_A,0);
  // delay(1000);
  // digitalWrite(Led_B,0);
  // delay(1000);
  // digitalWrite(Led_C,0);
  // delay(1000);
  // digitalWrite(Led_D,0);
  // delay(1000);
  // digitalWrite(Led_E,0);
  // delay(1000);
  // digitalWrite(Led_F,0);
  // delay(1000);
  // digitalWrite(Led_G,0);
  
  if(digitalRead(PB_1)==LOW){
    Nilai_Angka++;
    Serial1.println(Nilai_Angka);
    delay(1000);
  }
  else if(digitalRead(PB_2)==LOW){
    Nilai_Angka--;
    Serial1.println(Nilai_Angka);
    delay(1000);
  }
  Proses_Angka();
}
void Proses_Angka(){
  if(Nilai_Angka == -1){Nilai_Angka=9;}
  if(Nilai_Angka == 0){Nol();}
  if(Nilai_Angka == 1){Satu();}
  if(Nilai_Angka == 2){Dua();}
  if(Nilai_Angka == 3){Tiga();}
  if(Nilai_Angka == 4){Empat();}
  if(Nilai_Angka == 5){Lima();}
  if(Nilai_Angka == 6){Enam();}
  if(Nilai_Angka == 7){Tujuh();}
  if(Nilai_Angka == 8){Delapan();}
  if(Nilai_Angka == 9){Sembilan();}
  if(Nilai_Angka == 10){Nilai_Angka=0;}
}
void Nol(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,0);
  digitalWrite(Led_E,0);
  digitalWrite(Led_F,0);
  digitalWrite(Led_G,1);
}
void Satu(){
  digitalWrite(Led_A,1);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,1);
  digitalWrite(Led_E,1);
  digitalWrite(Led_F,1);
  digitalWrite(Led_G,1);
}
void Dua(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,1);
  digitalWrite(Led_D,0);
  digitalWrite(Led_E,0);
  digitalWrite(Led_F,1);
  digitalWrite(Led_G,0);
}
void Tiga(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,0);
  digitalWrite(Led_E,1);
  digitalWrite(Led_F,1);
  digitalWrite(Led_G,0);
}
void Empat(){
  digitalWrite(Led_A,1);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,1);
  digitalWrite(Led_E,1);
  digitalWrite(Led_F,0);
  digitalWrite(Led_G,0);
}
void Lima(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,1);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,0);
  digitalWrite(Led_E,1);
  digitalWrite(Led_F,0);
  digitalWrite(Led_G,0);
}
void Enam(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,1);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,0);
  digitalWrite(Led_E,0);
  digitalWrite(Led_F,0);
  digitalWrite(Led_G,0);
}
void Tujuh(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,1);
  digitalWrite(Led_E,1);
  digitalWrite(Led_F,1);
  digitalWrite(Led_G,1);
}
void Delapan(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,0);
  digitalWrite(Led_E,0);
  digitalWrite(Led_F,0);
  digitalWrite(Led_G,0);
}
void Sembilan(){
  digitalWrite(Led_A,0);
  digitalWrite(Led_B,0);
  digitalWrite(Led_C,0);
  digitalWrite(Led_D,0);
  digitalWrite(Led_E,1);
  digitalWrite(Led_F,0);
  digitalWrite(Led_G,0);
}