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

// Objetos
LiquidCrystal_I2C lcd(0x27, 16, 2);  
RTC_DS1307 rtc;

const int ledPin = 7;
const int ledPin1 = 10;
void setup() {
  // LED
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);
    pinMode(ledPin1, OUTPUT);
  digitalWrite(ledPin1, LOW);

  // LCD
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Reloj DS1307");

  // RTC
  if (!rtc.begin()) {
    lcd.setCursor(0,1);
    lcd.print("No RTC detectado");
    while (1);
  }

  if (!rtc.isrunning()) {
    lcd.setCursor(0,1);
    lcd.print("Ajustando hora...");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); 
    delay(2000);
  }

  lcd.clear();
}

void loop() {
  DateTime now = rtc.now();

  // Mostrar fecha
  lcd.setCursor(0,0);
  lcd.print(now.day());
  lcd.print("/");
  lcd.print(now.month());
  lcd.print("/");
  lcd.print(now.year());

  // Mostrar hora
  lcd.setCursor(0,1);
  if (now.hour() < 10) lcd.print("0");
  lcd.print(now.hour());
  lcd.print(":");
  if (now.minute() < 10) lcd.print("0");
  lcd.print(now.minute());
  lcd.print(":");
  if (now.second() < 10) lcd.print("0");
  lcd.print(now.second());

  // Encender LED a las 8:10 am
  if (now.hour() == 22 && now.minute() == 16) {
    digitalWrite(ledPin, HIGH);
  } else {
    digitalWrite(ledPin, LOW);
  }

  delay(1000);

  if (now.hour() == 12 && now.minute() == 31) {
    digitalWrite(ledPin1, HIGH);
  } else {
    digitalWrite(ledPin1, LOW);
  }

  delay(1000);
}