int batas = 0;

void setup() {
  // put your setup code here, to run once:
  for (int i = 2; i< 9; i++){
    pinMode(i, OUTPUT);
  }
  pinMode(13,OUTPUT);
  pinMode(12,OUTPUT);
  pinMode(11,OUTPUT);
  Serial.begin(9600);
  Serial.println("Masukkan Password Anda : ");
}

void off(){
  for (int i = 2; i< 9; i++){
    digitalWrite(i, HIGH);
  }
}

void ledOff(){
      for(int i = 13; i > 10; i--){
        digitalWrite(i, LOW);
      }
}

void loop() {
  // put your main code here, to run repeatedly:
  off();
  while(Serial.available()==0){}
  int pass = Serial.parseInt();
  Serial.println(pass);
  if(pass == 123){
    Serial.println("Password Benar");
    while(Serial.available()==1){
      digitalWrite(2, LOW);
      digitalWrite(3, LOW);
      digitalWrite(4, LOW);
      ledOff();
      delay(1000);
      batas = 0;
    }
  }
  else {
    Serial.println("Password Salah");
    while(Serial.available()==1){}
    batas++;
    if(batas == 1){
      digitalWrite(13, HIGH);
      delay(250);
    }
    else if(batas == 2){
      digitalWrite(13, HIGH);
      digitalWrite(12, HIGH);
      delay(250);
    }
    else if(batas == 3){
      digitalWrite(13, HIGH);
      digitalWrite(12, HIGH);
      digitalWrite(11, HIGH);
      delay(250);
      for (int j = 0; j < 6;j++ ){
        for (int i = 1; i < 8;i++){
          digitalWrite(i, LOW);
          delay(100);
          digitalWrite(i, HIGH);
        }
      }
    }
    else{
      off();
      ledOff();
      batas = 0;
    }
  }
}