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

RTC_DS1307 rtc;
LiquidCrystal lcd(7, 8, 9, 10, 11, 12); // Adjust pins based on your wiring
const int ledPin = 3; // PWM pin for LEDs

void setup() {
  // Initialize Serial Monitor
  Serial.begin(9600);
  
  // Initialize RTC
  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  // Initialize LCD
  lcd.begin(16, 2);
  lcd.print("RTC & LED Test");

  // Set LED pin as output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Display the time on the LCD
  DateTime now = rtc.now();
  lcd.setCursor(0, 1);
  lcd.print(now.hour());
  lcd.print(":");
  lcd.print(now.minute());
  lcd.print(":");
  lcd.print(now.second());

  analogWrite(ledPin,0);
  delay(1000);
  analogWrite(ledPin,50);
  delay(1000);
  analogWrite(ledPin,100);
  delay(1000);
  analogWrite(ledPin,255);
  delay(1000);


  /*
  // Gradually increase and decrease LED brightness
  for (int brightness = 0; brightness <= 255; brightness+=5) {
    analogWrite(ledPin, brightness);
    //delay(1);
  }
  for (int brightness = 255; brightness >= 0; brightness-=5) {
    analogWrite(ledPin, brightness);
    //delay(1);
  }
  */
}