#define buzzer 9
#define dataPin AO4
#define lachPin A1
#define clockPin A2
#define btnM 29
#define btnB 51
#define btnK 25
#define btnH 23

#define ledM 53
#define ledB 52
#define ledK 22
#define ledH 27


int tombolA = 0; 
int tombolB = 0; 
int tombolC = 0; 
int tombolD = 0; 

int ClockPin ; A2
int lactPin ; 2
int dataPinA04 ; 4

byte angka[10]={
  B11000000,// 0
  B11111001,// 1
  B10100100,// 2
  B10110000,// 3
  B10011001,// 4
  B10010010,// 5
  B10000010,// 6
  B11111000,// 7
  B10000000,// 8
  B10010000,// 9
};

void tampilanAngka(int puluhan, int satuan) {
  digitalWrite(lachPin, LOW);

  shiftOut(dataPinA4, clockPin, MSBFIRST, angka[puluhan]);

  shiftOut(dataPinA4, clockPin, MSBFIRST,angka[puluhan]);

  digitalWrite(lachPin, HIGH);
}

void setup() {
  Serial.begin(9600);

pinMode(btnM, INPUT_PULLUP);
pinMode(btnB, INPUT_PULLUP);
pinMode(btnK, INPUT_PULLUP);
pinMode(btnH, INPUT_PULLUP);

pinMode(ledM, OUTPUT);
pinMode(ledB, OUTPUT);
 pinMode(ledK, OUTPUT);
 pinMode(ledH, OUTPUT);
pinMode(dataPinAO4, OUTPUT);
pinMode(clockPin, OUTPUT);
pinMode(lachPin, OUTPUT);
                    
digitalWrite(ledM, LOW);
digitalWrite(ledB, LOW);
digitalWrite(ledK, LOW);
digitalWrite(ledH, LOW);
}

void loop() {

 if (digitalRead(btnM) == LOW) {
Serial.println("Tombol M ditekan");
digitalWrite(ledM, HIGH);
delay(500);
digitalWrite(ledM, LOW);
}

 if (digitalRead(btnB) == LOW) {
 Serial.println("Tombol B ditekan");
 digitalWrite(ledB, HIGH);
 delay(500);
 digitalWrite(ledB, LOW);
 }

 if (digitalRead(btnK) == LOW) {
 Serial.println("Tombol K ditekan");
 digitalWrite(ledK, HIGH);
 delay(500);
 digitalWrite(ledK, LOW);
 }

 if (digitalRead(btnH) == LOW) {
 Serial.println("Tombol H ditekan");
 digitalWrite(ledH, HIGH);
 delay(500);
 digitalWrite(ledH, LOW);
 }

if (digitalRead(btnB) == LOW) {
    nilai++;
    if (nilai > 99) nilai = 0;

    tampilkanAngka(nilai / 10, nilai % 10);

    tone(buzzer, 500, 100);
    delay(200);
  }

  
  if (digitalRead(btnM) == LOW) {
    nilai--;
    if (nilai < 0) nilai = 99;

    tampilkanAngka(nilai / 10, nilai % 10);

    tone(buzzer, 400, 100);
    delay(200);
  }
}