/* DHT humidity/temperature sensors  */
#include <LiquidCrystal_I2C.h>
#include "DHT.h"

#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   2

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

#define DHTPIN 2     // Digital pin connected to the DHT sensor

//#define DHTTYPE DHT11   // DHT 11
#define DHTTYPE DHT22     // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

// Initialize DHT sensor.
DHT dht(DHTPIN, DHTTYPE);

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

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  lcd.setCursor(0, 0);  // Column, row
  lcd.print(F("Humidity%:"));
  lcd.print(h);
  lcd.setCursor(0, 1);  // Column, row
  lcd.print(F("Temperatu:"));
  lcd.print(t);

  

}