#include "DHT.h"
//#include <SPI.h>
#include <Wire.h>
//#include <Adafruit_GFX.h>
#include "RTClib.h"

#define DHTPIN 2     
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
#include <LiquidCrystal_I2C.h>

DHT dht(DHTPIN, DHTTYPE);
//LiquidCrystal_I2C lcd(0x27, 16, 2);
LiquidCrystal_I2C lcd(0x27, 20, 4);
RTC_DS1307 rtc;
char daysOfTheWeek[7][12] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
int powerPin = 3; 

void setup() {
  Serial.begin(9600);
  lcd.init();
  // Print a message to the LCD.
  lcd.backlight(); 
  // jadikan pin power sebagai output
  pinMode(powerPin, OUTPUT);
  // default bernilai LOW
  digitalWrite(powerPin, LOW);
 dht.begin();
  if (! rtc.begin()) 
  {
    lcd.print("Couldn't find RTC");
    while (1);
  }
if (! rtc.isrunning()) 
  {
    lcd.print("RTC is NOT running!");
  }
   
}

void loop() {
 digitalWrite(powerPin, HIGH);
  
 float kelembaban = dht.readHumidity();
 float suhu = dht.readTemperature();

 Serial.print("kelembaban: ");
 Serial.print(kelembaban);
 Serial.print(" ");
 Serial.print("suhu: ");
 Serial.println(suhu);
 
   
  lcd.clear();

  DateTime now = rtc.now();
  lcd.setCursor(0,0);
  lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
  lcd.print(" ");
  lcd.print(now.day());
  lcd.print('/');
  lcd.print(now.month());
  lcd.print('/');
  lcd.print(now.year());
  lcd.print(" "); 
  lcd.print(now.hour());
  lcd.print(':');
  lcd.print(now.minute());
  lcd.print(' ');
  
  lcd.setCursor(0,1);
  lcd.print("Kelembaban: ");
  lcd.setCursor(11,1);
  lcd.print(kelembaban);

  lcd.setCursor(0,2);
  lcd.print("Suhu: ");
  lcd.setCursor(5,2);
  lcd.print(suhu);
 

  if(suhu>=28){
    lcd.setCursor(0,3);
    lcd.print("AC ON");
    }
   else
    {
     lcd.setCursor(0,3);
     lcd.print("AC OFF");
    }

 delay(1000);
}