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

#define DHTPIN 11
#define DHTTYPE DHT22
#define LDR 34

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 20, 4); 

void printCenter(String text, int row) {
  int totalCols = 20;  // jumlah kolom LCD 20x4
  int textLength = text.length();

  if (textLength > totalCols) {
    text = text.substring(0, totalCols);  // potong kalau terlalu panjang
    textLength = totalCols;
  }

  int startCol = (totalCols - textLength) / 2; // posisi mulai agar di tengah

  lcd.setCursor(startCol, row);
  lcd.print(text);
}

void setup() {
  Serial.begin(9600);
  Wire.begin();
  lcd.init();
  lcd.backlight();
  lcd.clear();
  dht.begin();
  printCenter("Weather Station", 1);
  printCenter("Mini", 2);
  delay(2000);
}

void loop() {
  float kelembapan = dht.readHumidity();
  float suhu = dht.readTemperature();
  float nilai = analogRead(LDR);
  lcd.clear();
  lcd.setCursor(0, 1);
  lcd.print("Suhu: " + String(nilai) + " °C");
  lcd.setCursor(0, 2);
  lcd.print("Kelembapan: " + String(nilai) + " %");
  lcd.setCursor(0, 3);
  lcd.print("Cahaya: " + String(nilai) + " Lux");
}