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

#define DHTPIN_INSIDE 2
#define DHTPIN_OUTSIDE 3
#define DHTTYPE DHT22

DHT dht_inside(DHTPIN_INSIDE, DHTTYPE);
DHT dht_outside(DHTPIN_OUTSIDE, DHTTYPE);

LiquidCrystal_I2C lcd(0x27, 16, 2);

float set_temp = 25.0;
float set_humidity = 50.0;

void setup() {
  lcd.init();
  lcd.backlight();
  dht_inside.begin();
  dht_outside.begin();
  pinMode(4, OUTPUT);
}

void loop() {
  float temp_inside = dht_inside.readTemperature();
  float humidity_inside = dht_inside.readHumidity();
  float temp_outside = dht_outside.readTemperature();
  float humidity_outside = dht_outside.readHumidity();

  lcd.setCursor(0, 0);
  lcd.print("Inside: ");
  lcd.print(temp_inside);
  lcd.print("C ");
  lcd.print(humidity_inside);
  lcd.print("%");

  lcd.setCursor(0, 1);
  lcd.print("Outside: ");
  lcd.print(temp_outside);
  lcd.print("C ");
  lcd.print(humidity_outside);
  lcd.print("%");

  if (temp_inside > set_temp || humidity_inside > set_humidity) {
    digitalWrite(4, HIGH);
  } else {
    digitalWrite(4, LOW);
  }

  delay(1000);
}