#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4);
#include <RTClib.h>
RTC_DS1307 rtc;
int d,m,y,h,mn,s;
#include <DHTesp.h>
DHTesp dht;
#define dht_pin 15
float temp,humi;
void setup()
{
  lcd.init();
  rtc.begin();
  dht.setup(dht_pin, DHTesp::DHT22);
}
void loop()
{
  //ສ່ວນຂອງການອ່ານຄ່າຂອງໂມງ
  DateTime now = rtc.now();
  d = now.day();
  m = now.month();
  y = now.year();
  h = now.hour();
  mn = now.minute();
  s = now.second();
  //-----------------------
  //ອ່ານຄ່າຈາກເຊັນເຊີ DHT22
  TempAndHumidity data = dht.getTempAndHumidity();
  temp = data.temperature;
  humi = data.humidity;
  //ສ່ວນຂອງການສະແດງຜົນເທິວຈໍ LCD
  lcd.setCursor(0,0);
  lcd.print("Date: ");
  if(d < 10)
  {
    lcd.print("0");
  } 
  lcd.print(d);
  lcd.print("/");
  if(m < 10)
  {
    lcd.print("0");
  } 
  lcd.print(m);
  lcd.print("/");
  lcd.print(y);
  lcd.setCursor(0,1);
  lcd.print("Time: ");
  if(h<10)
  {
    lcd.print("0");
  }
  lcd.print(h);
  lcd.print(":");
  if(mn<10)
  {
    lcd.print("0");
  }
  lcd.print(mn);
  lcd.print(":");
  if(s<10)
  {
    lcd.print("0");
  }
  lcd.print(s);
  lcd.setCursor(0,2);
  lcd.print("Tem = ");
  lcd.print(temp);
  lcd.print(" *C");
  lcd.setCursor(0,3);
  lcd.print("Humidity = ");
  lcd.print(humi);
  lcd.print(" %");
  delay(500);
}