int ledm = 13;
int ledk = 12; 
int ledb = 11;
int buzzer = 10;
int btn = 9;

const byte numeral[10] =
{
  // 0 = led dalam seven segment yang tidak diberikan tagangan
  // 1 = led dalam seven segment yang diberikan tagangan masukan
  B11111101, // angka 0
  B01100001, // angka 1
  B11011011, // angka 2
  B11110011, // angka 3
  B01100111, // angka 4
  B10110111, // angka 5
  B10111111, // angka 6
  B11100001, // angka 7
  B11111111, // angka 8
  B11110111, // angka 9
};

// pin dari segment dp,G,F,E,D,C,B,A
const int segmentPins[8] = {1,8,7,6,5,4,3,2};

void setup() {
  //Put your setup code here, to run once:
pinMode(ledm, OUTPUT);
pinMode(ledk, OUTPUT);
pinMode(ledb, OUTPUT);
pinMode(buzzer, OUTPUT);
pinMode(btn, INPUT_PULLUP);
digitalWrite(ledm, LOW);
digitalWrite(ledk, LOW);
digitalWrite(ledb, LOW);

for(int i=0; i < 8; i++)
  {
    pinMode(segmentPins[i], OUTPUT);
  }

}

void loop(){
  if (digitalRead(btn) == LOW) {

    digitalWrite(ledm, HIGH);
      tone(buzzer, 5000);
    // Count down from 9 to 0
    for (int i = 9; i >= 0; i--) {
      showDigit(i);
      delay(1000); // Wait for 1 second
    }
    noTone(buzzer);
    digitalWrite(ledm, LOW);
    delay(2000);

    digitalWrite(ledk, HIGH);
    //tone(buzzer, 5000);
    // Count down from 9 to 0
    for (int i = 5; i >= 0; i--) {
      showDigit(i);
      delay(1000); // Wait for 1 second
    }
    noTone(buzzer);
    digitalWrite(ledk, LOW);
    delay(2000);

    digitalWrite(ledb, HIGH);
      tone(buzzer, 1000);
    // Count down from 9 to 0
    for (int i = 9; i >= 0; i--) {
      showDigit(i);
      delay(1000); // Wait for 1 second
    }
    noTone(buzzer);
    digitalWrite(ledb, LOW);
    delay(2000);

  }

 /*if(digitalRead(btn) == LOW){
  digitalWrite(ledm, HIGH);
  tone(buzzer, 5000);
  delay(3000);
  digitalWrite(ledm, LOW);
  noTone(buzzer);
  delay(1000);
  digitalWrite(ledm, HIGH);
  tone(buzzer, 5000);
  delay(3000);
  digitalWrite(ledm, LOW);
  noTone(buzzer);
  
  digitalWrite(ledk, HIGH);
  delay(2000);
  digitalWrite(ledk, LOW);
  delay(1000);
  digitalWrite(ledk, HIGH);
  delay(2000);
  digitalWrite(ledk, LOW);

  digitalWrite(ledb, HIGH);
  tone(buzzer, 1000);
  delay(2000);
  digitalWrite(ledb, LOW);
  noTone(buzzer);
  delay(1000);
  digitalWrite(ledb, HIGH);
  tone(buzzer, 1000);
  delay(2000);
  digitalWrite(ledb, LOW);
  noTone(buzzer);
 }*/
}

void showDigit( int number)
{
  boolean isBitSet;
  for(int segment = 1; segment < 8; segment++)
  {
    if( number < 0 || number > 9)
    {
      isBitSet = 0; // turn off all segments
    }
    else
    {
      // isBitSet will be true if given bit is 1
      isBitSet = bitRead(numeral[number], segment);
    }
    isBitSet = !isBitSet;
    digitalWrite( segmentPins[segment], isBitSet);
  }
}