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

const int btn = 8;
const int led = 9;
int buttonstatus = 0;
int time;
DateTime now;
void setup() {
  lcd.begin (16,2);  // initialize the lcd 
  lcd.backlight();//To Power ON the back light
  pinMode(led,OUTPUT); 
  pinMode(btn, INPUT);
  if (! rtc.begin()) 
  {
    lcd.print("Couldn't find RTC");
    while (1);
  }
if (! rtc.isrunning()) 
  {
    lcd.print("RTC is NOT running!");
  }
  //rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));//auto update from computer time
 rtc.adjust(DateTime(2022, 11, 24, 0, 0, 0));// to set the time manually 
 Serial.begin(9600);
}

void loop() {
 buttonstatus = digitalRead(btn);
 now = rtc.now();
 time = now.second();



 if (buttonstatus == HIGH){
  digitalWrite(led,HIGH);
  lcd.setCursor(1, 0);
  lcd.print("LED ON SELAMA");
  lcd.setCursor(2, 1);
  lcd.print(time);
  Serial.println("LED ON SELAMA");
  Serial.println(time);
  Serial.end();

  delay(1000);
    

 }
else { 
  digitalWrite(led,LOW);
  lcd.setCursor(1, 0);
  lcd.println("LED AKTIF SELAMA");
  lcd.print(time);
  Serial.println("LED AKTIF SELAMA");
  Serial.println(time);
  Serial.end();

  delay(1000);
  }
}