int A = 8;
int B = 9;
int C = 3;
int D = 4;
int E = 5;
int F = 7;
int G = 6;
int DP = 2;
int LED = 10;
int Motor = 1;

int IRsensor;
int IRsensorSebelumnya =1;
int Hitung = 0;
void setup() {
  pinMode(2,OUTPUT);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(5,OUTPUT);
  pinMode(6,OUTPUT);
  pinMode(7,OUTPUT);
  pinMode(8,OUTPUT);
  pinMode(9,OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(13, INPUT_PULLUP);
  pinMode(1, OUTPUT);
  digitalWrite(DP, HIGH);
  digitalWrite(A, LOW);
  digitalWrite(B, LOW);
  digitalWrite(C, LOW);
  digitalWrite(D, LOW);
  digitalWrite(E, LOW);
  digitalWrite(F, LOW);
  digitalWrite(G, HIGH);
  digitalWrite(LED, LOW);
  digitalWrite(Motor, HIGH);
Serial.begin(9600);
}

void loop() {
IRsensor = digitalRead(13);

if (IRsensor != IRsensorSebelumnya){
  if (IRsensor == LOW){
    if (Hitung == 9){
      Hitung = -1;
    }
    Hitung ++;
    Serial.println(Hitung);
    TambahAngka (Hitung);
    delay(100);
    }
  }
}


void TambahAngka (int TampilAngka){
  switch (TampilAngka){
    case 0:
    digitalWrite(A,LOW);
    digitalWrite(B,LOW);
    digitalWrite(C,LOW);
    digitalWrite(D,LOW);
    digitalWrite(E,LOW);
    digitalWrite(F,LOW);
    digitalWrite(G,HIGH);
    digitalWrite(LED, LOW);
    break;

    case 1:
    digitalWrite(A,HIGH);
    digitalWrite(B,LOW);
    digitalWrite(C,LOW);
    digitalWrite(D,HIGH);
    digitalWrite(E,HIGH);
    digitalWrite(F,HIGH);
    digitalWrite(G,HIGH);
    digitalWrite(LED, LOW);
    break;

    case 2:
    digitalWrite(A,LOW);
    digitalWrite(B,LOW);
    digitalWrite(C,HIGH);
    digitalWrite(D,LOW);
    digitalWrite(E,LOW);
    digitalWrite(F,HIGH);
    digitalWrite(G,LOW);
    digitalWrite(LED, 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);
    digitalWrite(LED, 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);
    digitalWrite(LED, 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);
    digitalWrite(LED, 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);
    digitalWrite(LED, 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);
     digitalWrite(LED, LOW);
    break;

    case 8:
    digitalWrite(A,LOW);
    digitalWrite(B,LOW);
    digitalWrite(C,LOW);
    digitalWrite(D,LOW);
    digitalWrite(E,LOW);
    digitalWrite(F,LOW);
    digitalWrite(G,LOW);
    digitalWrite(LED, 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);
    digitalWrite(LED, HIGH);
    break;
  }
}