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


#define DHTPIN 2     
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 20, 4);
void setup() {
  Serial.begin(115200);
  Serial.println(F("DHT22 example!"));
  
  dht.begin();
  lcd.init();
  lcd.backlight();
  lcd.begin(16, 2);
  lcd.setCursor(0, 0);
}

void loop() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  

  // Check if any reads failed and exit early (to try again).
  if (isnan(temperature) || isnan(humidity)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }
  lcd.setCursor(0, 0);
  lcd.print(F("Humidity: "));
  lcd.print(humidity);
  lcd.setCursor(0, 1);
  lcd.print(F("Temperature: "));
  lcd.print(temperature);
  lcd.println(F("°C "));

  // Wait a few seconds between measurements.
  delay(2000);
}