#include <Wire.h>
#include <Adafruit_BMP085.h>
#include <DHT.h>
#include <LiquidCrystal_I2C.h>

#define DHTPIN 2
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);
Adafruit_BMP085 bmp;
LiquidCrystal_I2C lcd(0x27, 20, 4);

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

void loop() {

  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  float pressure = bmp.readPressure() / 100.0; 

  lcd.clear();

  lcd.setCursor(0,0);
  lcd.print("Temp:");
  lcd.print(temperature);
  lcd.print("C ");
  delay(2000);

  lcd.setCursor(0,1);
  lcd.print("Hum:");
  lcd.print(humidity);
  lcd.print("%");
  delay(2000);
  
  lcd.setCursor(0,2);
  lcd.print("Pre:");
  lcd.print(pressure);
  lcd.print(" hPa");

  delay(2000);
}