#include <DHT.h>
#define dhtPin 6
#define DHTTYPE DHT22
DHT dht (dhtPin, DHT22);

#define Relay 5

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd (0x27, 16, 2);

float suhu;
float kelembaban;

void setup() {
  Serial.begin (115200);
  dht.begin();
  pinMode (Relay, OUTPUT);
  lcd.begin(16, 2);
  lcd.backlight();
}

void loop() {
  suhu = dht.readTemperature();
  kelembaban = dht.readHumidity();

  Serial.print("suhu: ");
  Serial.print(suhu);
  Serial.print("°C, Kelembaban: ");
  Serial.print(kelembaban);
  Serial.println(" %");
  delay(2000);

  lcd.setCursor(0, 0);
  lcd.print("suhu: ");
  lcd.print(suhu);
  lcd.setCursor(0, 1);
  lcd.print("kelembaban :" );
  lcd.print(kelembaban);
  

  if (suhu > 20) {
    digitalWrite(Relay, HIGH);  
  } else {
    digitalWrite(Relay, LOW);   
  } 
}