#define pinLed1 12
#define pinLed2 11
#define pinLed3 10
#define pinLed4 9
#define pinButton1 8
#define pinButton2 7

//variabel bilangan bulat
int dataPertama = 100;
int dataButton1 = 0;
int dataButton2 = 0;
int menu = 0;
//variabel bilangan pecahan
float dataKedua = 100.7;


void setup(){
  pinMode(pinLed1, OUTPUT);
  pinMode(pinLed2, OUTPUT);
  pinMode(pinLed3, OUTPUT);
  pinMode(pinLed4, OUTPUT);
  pinMode(pinButton1, INPUT);
  pinMode(pinButton2, INPUT);

  Serial.begin(9600);
}

void loop(){
  Serial.print("menu : ");
  Serial.println(menu);

  dataButton1 = digitalRead(pinButton1);
  dataButton2 = digitalRead(pinButton2);
  Serial.println(dataButton1);
  Serial.println(dataButton2);

  if(dataButton1 == 1){
    menu = menu + 1;
  }

  if(dataButton2 == 0){
    menu = menu - 1;
  }
  delay(100);
}