/*
GND -> GND
VCC -> 5V
SDA -> 20SDA
SCL -> 21SCL
*/

#include <Wire.h>
#include "RTClib.h"


DateTime now;

char daysOfTheWeek[7][12] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};

RTC_DS3231 rtc;

void showDate(void);
void showTime(void);
void showDay(void);


void setup ()
{
  Serial.begin(9600);

  //delay(2000);
  if (! rtc.begin())
  {
    Serial.println("Couldn't find RTC Module");
    while (1);
  }

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

  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);
}

void loop ()
{
  delay(1000);
  now = rtc.now();
  //showDate();
  //showDay();
  //showTime();
  Serial.println(now.minute());

  if(now.minute() == 25){
       lightLED();
    }
    else{
          digitalWrite(LED_BUILTIN, LOW);
      }
}

void showDate()
{
  Serial.print(now.day());
  Serial.print('/');
  Serial.print(now.month());
  Serial.print('/');
  Serial.print(now.year());
}

void showDay()
{

  Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
}

void showTime()
{
  Serial.print("Time:");
  Serial.print(now.hour());
  Serial.print(':');
  Serial.print(now.minute());
  Serial.print(':');
  Serial.print(now.second());
  Serial.print("    ");
}

void lightLED(){
  digitalWrite(LED_BUILTIN, HIGH);
  }