int led1 = 2;
int led2 = 3;
int led3 = 4;
int button1 = 5;
int button2 = 6;
int button3 = 7;
int buttonState1=0;
int buttonState2=0;
int buttonState3=0;
void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
  pinMode(button3, INPUT);
}

void loop() {
  // Baca status pushbutton
  buttonState1 = digitalRead(button1);
  buttonState2 = digitalRead(button2);
  buttonState3 = digitalRead(button3);

  // Jika pushbutton 1 ditekan, semua LED berkedip
  if (buttonState1 == HIGH) {
    blinkAllLeds();
  }

  // Jika pushbutton 2 ditekan, nyalakan LED bergantian
  else if (buttonState2 == HIGH) {
    alternateLeds();
  }

  // Jika pushbutton 3 ditekan, LED menyala 1, mati 2, bergantian
  else if (buttonState3 == HIGH) {
    oneLedOnTwoOff();
  }

  // Matikan semua LED jika tidak ada tombol yang ditekan
  else {
    turnOffAllLeds();
  }
}

// Fungsi untuk membuat semua LED berkedip
void blinkAllLeds() {
  digitalWrite(led1, HIGH);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, HIGH);
  delay(500); // Tunda selama 500 ms
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
  delay(500); // Tunda selama 500 ms
}

// Fungsi untuk menyalakan LED bergantian (LED1 -> LED2 -> LED3)
void alternateLeds() {
  digitalWrite(led1, HIGH);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
  delay(500);
  
  digitalWrite(led1, LOW);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, LOW);
  delay(500);
  
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, HIGH);
  delay(500);
}

// Fungsi untuk menyalakan 1 LED dan mematikan 2 lainnya bergantian
void oneLedOnTwoOff() {
  digitalWrite(led1, HIGH);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
  delay(500);
  
  digitalWrite(led1, LOW);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, LOW);
  delay(500);
  
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, HIGH);
  delay(500);
}

// Fungsi untuk mematikan semua LED
void turnOffAllLeds() {
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
}