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

#define DHT_PIN 2
#define SDA A0
#define SCL A1

LiquidCrystal_I2C lcd(0x27, 20, 4);
DHT dht22(DHT_PIN, DHT22);

float humidity;
float temp;

void setup() {
  dht22.begin();
  lcd.init();
  lcd.backlight();
}

void loop() {
  humidity = dht22.readHumidity();
  temp = dht22.readTemperature();
  lcd.setCursor(0,0);
  lcd.print("Temperature: ");
  lcd.print(temp);
  lcd.print("C");
  lcd.setCursor(0,1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print("%");
  delay(100);
}