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

DHT dht(27, DHT22);
LiquidCrystal_I2C lcd(0x27, 16, 2); 

float suhu2 = 0;
float kelembapan2 = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  dht.begin();
  lcd.init();      // Initialize the LCD
  lcd.backlight(); // Turn on the backlight
}

void loop() {
  // put your main code here, to run repeatedly:
  float suhu = dht.readTemperature();
  float kelembapan = dht.readHumidity();

  if (suhu != suhu2){
    lcd.clear();
  }
  if (kelembapan != kelembapan2){
    lcd.clear();
  }

  suhu2 = suhu;
  kelembapan2 = kelembapan;
  
  if (isnan(suhu) || isnan(kelembapan)) {
    lcd.println("Gagal membaca dari sensor DHT22!");
    delay(2000);
    return;
  }


  lcd.setCursor(0,0);
  lcd.print("Suhu   : ");
  lcd.print(suhu);
  lcd.print("C");
  lcd.setCursor(0,1);
  lcd.print("Klmbpn : ");
  lcd.print(kelembapan);
  lcd.println("%");
  delay(100);
}