#include <LiquidCrystal.h>
#include <RTClib.h>
LiquidCrystal lcd (22,23,5,18,19,21);
int led=33;
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

void setup() {
  pinMode(led, OUTPUT);
  lcd.begin(16, 2);

  Serial.begin(57600);

#ifndef ESP8266
  while (!Serial); // wait for serial port to connect. Needed for native USB
#endif

 /* if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    while (1) delay(10);
  }

  if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running, let's set the time!");
    // When time needs to be set on a new device, or after a power loss, the
    // following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
  }

  // When time needs to be re-set on a previously configured device, the
  // following line sets the RTC to the date & time this sketch was compiled
  // rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  // This line sets the RTC with an explicit date & time, for example to set
  // January 21, 2014 at 3am you would call:
  // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
}*/


void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(led, HIGH);
  delay(5000); // this speeds up the simulation
  digitalWrite(led, LOW);
  delay(1000);
  /*lcd.setCursor(0, 0);
  lcd.print("      HOLA      ");
  lcd.setCursor(0, 2);
  lcd.print("   MUNDO CRUEL  ");
  delay(100);*/

  DateTime now = rtc.now();

    lcd.print(now.year(), DEC);
    lcd.print('/');
    lcd.print(now.month(), DEC);
    lcd.print('/');
    lcd.print(now.day(), DEC);
    lcd.print(" (");
    lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
    lcd.print(") ");
    lcd.print(now.hour(), DEC);
    lcd.print(':');
    lcd.print(now.minute(), DEC);
    lcd.print(':');
    lcd.print(now.second(), DEC);
    lcd.println();

    lcd.print(" since midnight 1/1/1970 = ");
    lcd.print(now.unixtime());
    lcd.print("s = ");
    lcd.print(now.unixtime() / 86400L);
    lcd.println("d");

    // calculate a date which is 7 days, 12 hours, 30 minutes, and 6 seconds into the future
    DateTime future (now + TimeSpan(7,12,30,6));

    lcd.print(" now + 7d + 12h + 30m + 6s: ");
    lcd.print(future.year(), DEC);
    lcd.print('/');
    lcd.print(future.month(), DEC);
    lcd.print('/');
    lcd.print(future.day(), DEC);
    lcd.print(' ');
    lcd.print(future.hour(), DEC);
    lcd.print(':');
    lcd.print(future.minute(), DEC);
    lcd.print(':');
    lcd.print(future.second(), DEC);
    lcd.println();

    lcd.println();
    delay(3000);
}