#include <RTClib.h>

// event from 13:50 to 14:10
uint8_t DAILY_EVENT_START_HH = 14; // event start time: hour
uint8_t DAILY_EVENT_START_MM = 20; // event start time: minute
uint8_t DAILY_EVENT_END_HH   = 14; // event end time: hour
uint8_t DAILY_EVENT_END_MM   = 40; // event end time: minute

RTC_DS1307 rtc;

char daysOfTheWeek[7][12] = {
  "Sunday",
  "Monday",
  "Tuesday",
  "Wednesday",
  "Thursday",
  "Friday",
  "Saturday"
};

void setup () {
  pinMode(4, OUTPUT);
  Serial.begin(9600);

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

  // sets the RTC to the date & time on PC this sketch was compiled
  rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));

  // sets the RTC with an explicit date & time, for example to set
  // January 21, 2021 at 3am you would call:
  // rtc.adjust(DateTime(2021, 1, 21, 3, 0, 0));

}

void loop () {
  DateTime now = rtc.now();
  if (now.hour()   >= DAILY_EVENT_START_HH &&
      now.minute() >= DAILY_EVENT_START_MM &&
      now.hour()   <  DAILY_EVENT_END_HH   &&
      now.minute() <  DAILY_EVENT_END_MM) {
    Serial.println("It is on scheduled time");
    delay(100);
    digitalWrite(4, HIGH);
    // TODO: write your code"
  } else {
    Serial.println("It is NOT on scheduled time");
     delay(100);
    digitalWrite(4, LOW);
  }

  printTime(now);
  delay(10000)
}

void printTime(DateTime time) {
  Serial.print("TIME: ");
  Serial.print(time.year(), DEC);
  Serial.print('/');
  Serial.print(time.month(), DEC);
  Serial.print('/');
  Serial.print(time.day(), DEC);
  Serial.print(" (");
  Serial.print(daysOfTheWeek[time.dayOfTheWeek()]);
  Serial.print(") ");
  Serial.print(time.hour(), DEC);
  Serial.print(':');
  Serial.println(time.minute(), DEC);
  Serial.print(':');
  //Serial.println(time.second(), DEC);
}