int inputNumber = 255;
int counter = 0;
int control = 0;
String binaryString = "";
boolean convertStatus = false;
int longPress = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  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, INPUT_PULLUP);
  pinMode(11, OUTPUT);

}

void toBinary(int x){
  binaryString = "";
  while(true){
    if(x<=0){
      convertStatus = true;
      ledOn();
      control = 0;
      counter = 0;
      break;
    }
    else if(x==1){
      binaryString += "1";
      convertStatus = true;
      x=0;
      ledOn();
      control = 0;
      counter = 0;
      break;
    }
    else if ((x%2) == 1){
      binaryString += "1";
      x /= 2;
    }
    else{
      binaryString += "0";
      x /= 2;
    }
    counter++;
    
  }
}

void ledOn(){
  int ledNum = 9;
  for(;counter>=0;counter--){
    if(binaryString[control] == '1'){
      digitalWrite(ledNum, HIGH);
      ledNum--;
    }
    if(binaryString[control] == '0'){
      digitalWrite(ledNum, LOW);
      ledNum--;
    }
    control++;

  }
}

void ledOff(){
  digitalWrite(9,LOW);
  digitalWrite(8,LOW);
  digitalWrite(7,LOW);
  digitalWrite(6,LOW);
  digitalWrite(5,LOW);
  digitalWrite(4,LOW);
  digitalWrite(3,LOW);
  digitalWrite(2,LOW);
  control = 0;
  counter = 0;
  
}

void loop() {
  // put your main code here, to run repeatedly:
  if(inputNumber>255) {
    inputNumber=1;
    ledOff();
  }
  toBinary(inputNumber);
  
  if (digitalRead(10)==LOW){
    longPress++;
    Serial.println(longPress);
    if (longPress >= 50){
      ledOff();
      binaryString="";
      longPress = 0;
      inputNumber=-1;
    }
  }

  if (digitalRead(10)==HIGH) longPress=0;
  if (longPress==1){
    tone(11, 2000);
    inputNumber+=1;
  }
  noTone(11);
  Serial.println(inputNumber);
  Serial.println(binaryString);
  delay(100);
}