#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
RTC_DS1307 rtc;
LiquidCrystal_I2C mylcd(0x27,16,2);

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

void setup () 
{
  Serial.begin(9600);
  mylcd.init();
  mylcd.backlight();
  // SETUP RTC MODULE
  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    mylcd.setCursor(0,0);
    mylcd.print("Couldn't find RTC");
    Serial.flush();
    while (1);
 }

  // automatically sets the RTC to the date & time on PC this sketch was compiled
  rtc.adjust(DateTime(2025, 5, 16, 10, 30, 0));

}

void loop () {
  DateTime now = rtc.now();
 mylcd.setCursor(0,0);
 mylcd.print("Date & Time:");
 mylcd.setCursor(12,0);
 mylcd.print(now.year(), DEC);
  mylcd.print('/');
  mylcd.setCursor(0,1);
 mylcd.print(now.month(), DEC);
  mylcd.print('/');
  mylcd.print(now.day(), DEC);
  mylcd.print(" (");
  mylcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
  mylcd.print(") ");
  mylcd.print(now.hour(), DEC);
  mylcd.print(':');
  mylcd.print(now.minute(), DEC);
  mylcd.print(':');
  mylcd.println(now.second(), DEC);
 Serial.print("Date & Time: ");
  Serial.print(now.year(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.day(), DEC);
  Serial.print(" (");
  Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
  Serial.print(") ");
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.println(now.second(), DEC);

  delay(1000); // delay 1 seconds
}