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

#define DHTPIN 2
#define DHTTYPE DHT11

const int relayPin = 3;
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27,20,4);

void setup() {
  pinMode(relayPin, OUTPUT);
  lcd.init();
  lcd.backlight();
  lcd.clear();
  lcd.setCursor(1, 0);
  lcd.print("Kipas Otomatis");
  delay(5000);
  lcd.clear();
  dht.begin();
}

void loop() {
  delay(2000);

  float suhu = dht.readTemperature();
  
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Suhu: ");
  lcd.print(suhu);
  lcd.write(0xDF);
  lcd.print("C");


  if (suhu > 28.0) {
    digitalWrite(relayPin, LOW);
    lcd.setCursor(0, 1);
    lcd.print("Kipas Hidup");
  } else {
    digitalWrite(relayPin, HIGH);
    lcd.setCursor(0, 1);
    lcd.print("Kipas Mati");
  }
}