Thursday 20 December 2018

Lcd clock using arduino and ds1307

////////////////////////////lcd clock using arduino and ds1307/////////////////////////
///////////////////////////senthamizhanjackie@gmail.com//////////////////////
////////////////////////////////created on 20/12/18//////////////////////////////////


#include <Wire.h>
#include <TimeLib.h>
#include <DS1307RTC.h>
#include <LiquidCrystal.h>

const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup()
{
  lcd.begin(16, 2);
  lcd.clear(); 
  lcd.print(" lcd clock ");
  lcd.setCursor(0,1);
  lcd.print(" code dt 181220 ");
  delay(2000);
  lcd.clear();
}


void loop()
{
  tmElements_t tm;
  if (RTC.read(tm))
  {
    lcd.setCursor(0,0);
    lcd.print("Time  ");
    print2digits(tm.Hour);
    lcd.print(':');
    print2digits(tm.Minute);
    lcd.print(':');
    print2digits(tm.Second);
    lcd.setCursor(0,1);
    lcd.print("Date  ");
    lcd.print(tm.Day);
    lcd.print('/');
    lcd.print(tm.Month);
    lcd.print('/');
    lcd.print(tmYearToCalendar(tm.Year));
  }
  delay(1000);
}

void print2digits(int number)
{
  if (number >= 0 && number < 10)
  {
    lcd.print('0');
  }
  lcd.print(number);
}

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