#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define BUTTON_PIN 16
#define LED_PIN 14

bool kondisiSekarang;
bool kondisiTerakhir = HIGH;
bool switch_test = HIGH;

// Initialize the LCD, set the address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(9600);
  
  // Initialize push button
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  pinMode(LED_PIN, OUTPUT);
  digitalWrite(LED_PIN, LOW);
  
  // Initialize the LCD
  lcd.init();
  lcd.backlight();
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Status LED");
}

void loop() {
  // Read push button
  kondisiSekarang = digitalRead(BUTTON_PIN);

  if (kondisiSekarang == LOW) {
    kondisiTerakhir = !kondisiTerakhir;
    switch_test = kondisiTerakhir;
    delay(500);
  }
  
  if (switch_test == HIGH) {
    Serial.println("LED Mati");
    digitalWrite(LED_PIN, LOW);
    lcd.setCursor(0, 1);
    lcd.print("LED State: OFF ");
  } else {
    Serial.println("LED Menyala");
    digitalWrite(LED_PIN, HIGH);
    lcd.setCursor(0, 1);
    lcd.print("LED State: ON  ");
  }
  delay(10);
}