#include "DHT.h"

#include "Wire.h"
#include "LiquidCrystal_I2C.h"

LiquidCrystal_I2C lcd(0x27, 16, 2);

void lcdI2C()
{
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Humidity=");
  lcd.setCursor(0, 1);
  lcd.print("Temperature=");
}

#define DHTPIN 22
#define DHTTYPE DHT22
#define INTERVAL_GET_DATA 2000

DHT dht(DHTPIN, DHTTYPE);

unsigned long millis_int1=0;

void setup() {
 lcdI2C();
 pinMode(12, OUTPUT);
 pinMode(13, OUTPUT);
 Serial.begin(9600);
 dht.begin();
}

void loop() {
 if(millis()-millis_int1 >= INTERVAL_GET_DATA) {

 int humidity = get_data_humidity();
 int temperature = get_data_temperature();

 Serial.print("humidity=");
 Serial.println(humidity);
 lcd.setCursor(9, 0);
 lcd.print(humidity);
 
 if(humidity < 25) {
 digitalWrite(12, HIGH);
 }
 else {
 digitalWrite(12, LOW);
 }

 Serial.print("temperature=");
 Serial.println(temperature);
 lcd.setCursor(12, 1);
 lcd.print(temperature);

if(temperature > 36) {
 digitalWrite(13, HIGH);
 }
 else {
 digitalWrite(13, LOW);
 }

 millis_int1 = millis();
 }
}

int get_data_humidity() {
 int h = dht.readHumidity();
 return h;
}

int get_data_temperature() {
 int t = dht.readTemperature();
 return t;
}