#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <RTClib.h>

// Initialize the RTC and LCD
RTC_DS1307 rtc;
LiquidCrystal_I2C lcd(0x27, 20, 4); // I2C address 0x27 for 20x4 LCD

void setup() {
  // Start the RTC and LCD
  Wire.begin();
  lcd.begin(20, 4); // Initialize the LCD with 20 columns and 4 rows
  lcd.backlight();

  if (!rtc.begin()) {
    lcd.setCursor(0, 0);
    lcd.print("Couldn't find RTC");
    while (1);
  }

  if (!rtc.isrunning()) {
    lcd.setCursor(0, 1);
    lcd.print("Setting the time!");
    // Set the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  lcd.clear();
}

void loop() {
  // Get the current time from the RTC
  DateTime now = rtc.now();

  // Display the current date and time on the LCD
  lcd.setCursor(0, 0);
  lcd.print("Date: ");
  lcd.print(now.year(),DEC);
  lcd.print('/');
  lcd.print(now.month(), DEC);
  lcd.print('/');
  lcd.print(now.day(), DEC);

  lcd.setCursor(0, 1);
  lcd.print("Time: ");
  char timeNow[9];
  sprintf(timeNow,"%02d:%02d:%02d",now.hour(),now.minute(),now.second());
  lcd.print(timeNow);

  // You can add more information on the remaining lines, for example:
  lcd.setCursor(0, 2);
  lcd.print("Day of Week: ");
  lcd.print(now.dayOfTheWeek()); // This is a number from 0-6 where 0 is Sunday

  // Update the display every second
  delay(1000);
}