#include <SD.h>
#include <Wire.h>
#include <RTClib.h>
#include <DHT.h>
#include <LiquidCrystal.h>
#define DHTPIN 2
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);

RTC_DS3231 rtc;

File dataFile;
LiquidCrystal lcd(6, 5, 4, 9, 8, 7);
int control = 0;
void setup() {
  lcd.begin(16, 2);
  Serial.begin(9600);
  while (!Serial) {}

  if (!SD.begin(10)) {
    Serial.println("SD card initialization failed!");
    return;
  }

  if (!rtc.begin()) {
    Serial.println("RTC initialization failed!");
    return;
  }

  if (rtc.lostPower()) {
    Serial.println("RTC lost power, lets set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  dht.begin();
}

void loop() {
  DateTime now = rtc.now();

  float temperature = dht.readTemperature();

  

  if (control<10){
    Serial.print(control);
    control ++;

    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print(now.day(), DEC);
    lcd.print('/');
    lcd.print(now.month(), DEC);
    lcd.print(' ');
    lcd.print(now.hour(), DEC);
    lcd.print(':');
    lcd.print(now.minute(), DEC);
    lcd.print(':');
    lcd.print(now.second(), DEC);
    lcd.setCursor(0,1);
    lcd.print(temperature);
    lcd.println("C");
  }
  else{
    dataFile = SD.open("logTemp.txt", FILE_WRITE);
    if (dataFile) {
      dataFile.print(now.year(), DEC);
      dataFile.print('/');
      dataFile.print(now.month(), DEC);
      dataFile.print('/');
      dataFile.print(now.day(), DEC);
      dataFile.print(' ');
      dataFile.print(now.hour(), DEC);
      dataFile.print(':');
      dataFile.print(now.minute(), DEC);
      dataFile.print(':');
      dataFile.print(now.second(), DEC);
      dataFile.print(',');
      dataFile.print("Temperature: ");
      dataFile.print(temperature);
      dataFile.print("ºC");
      dataFile.println();
      dataFile.close();
      } 
    else 
      {
      Serial.println("Error opening logTemp.txt!");
      }
      Serial.println();
      Serial.print(now.year(), DEC);
      Serial.print('/');
      Serial.print(now.month(), DEC);
      Serial.print('/');
      Serial.print(now.day(), DEC);
      Serial.print(' ');
      Serial.print(now.hour(), DEC);
      Serial.print(':');
      Serial.print(now.minute(), DEC);
      Serial.print(':');
      Serial.print(now.second(), DEC);
      Serial.print(',');
      Serial.println();
      Serial.print("Temperature: ");
      Serial.print(temperature);
      Serial.println("ºC");
    
    //Serial.println("fui");
    control = 0;
  }
 
  delay(1000);
}