/*
Nama:Nayla Rahma Kamila
Kelas:XI TKJ 2
No.absen:22
Nama Projek:Tugas 10
*/
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

int jumlah = 7;
LiquidCrystal_I2C lcd(0x27, 16, 2); 

void setup() {
  pinMode(2, INPUT_PULLUP);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);

  lcd.init();                      
  lcd.backlight();                 
  lcd.setCursor(0, 0);
  lcd.print("lampu hidup");

  lcd.setCursor(0, 1);
  lcd.print("Lampu Mati");
}

void loop() {
  if (digitalRead(2) == 0) {
    delay(100);
    jumlah++;
  }

  if (jumlah == 8) {
    digitalWrite(8, HIGH);
    updateLCD("Lampu kuning On");
  }
  if (jumlah == 9) {
    digitalWrite(9, HIGH);
    updateLCD("Lampu biru On");
  }
  if (jumlah == 10) {
    digitalWrite(10, HIGH);
    updateLCD("Lampu hijau On");
  }
  if (jumlah == 11) {
    digitalWrite(11, HIGH);
    updateLCD("Lampu Merah On");
  }
  if (jumlah == 12) {
    digitalWrite(8, LOW);
    digitalWrite(9, LOW);
    digitalWrite(10, LOW);
    digitalWrite(11, LOW);
    jumlah = 7;
    updateLCD("Semua Lampu Mati");
  }
}

void updateLCD(String message) {
  lcd.setCursor(0, 1);
  lcd.print(""); 
  lcd.setCursor(0, 1);
  lcd.print(message);
}