Arduino - DS3231 Real Time Clock





Introduction: Arduino - DS3231 Real Time Clock

In this tutorial we will learn how to use DS3231 Real Time Clock with the Arduino.

Step 1: Required Hardware

Step 2: About the DS3231 Module

The DS3231 is a low-cost, Real Time Clock Module which can maintain hours, minutes and seconds, as well as, day, month and year information.

The module can work on either 3.3 or 5V. The battery input is 3V and a typical CR2032 3V battery can power the module and maintain the information for more than a year.

Step 3: Connection

  1. We will connect the DS3231 module
  2. We will connect the LCD Display

Step 4: DS3231 Library

This library has been made to easily interface and use the DS3231 RTC with an Arduino or chipKit. The library will also work with the DS3232 RTC chip

Download the DS3231 Library -

Step 5: Source Code

You must install the DS3231 library and add the LiquidCrystal Library

Get the Source Code -

Step 6: You Can Subscribe to My YouTube Channel

You can subscribe to the my YouTube channel for more tutorials and projects. Subscribe for support. Thank you.

Go to my YouTube Channel -



    • Epilog Challenge 9

      Epilog Challenge 9
    • Trash to Treasure

      Trash to Treasure
    • Pocket-Sized Contest

      Pocket-Sized Contest

    We have a be nice policy.
    Please be positive and constructive.


    2 Questions

    Can i use 4 digit 8 segment display instead of 16 digit display? if i ? how can implement? could you please tell me program also.

    Can i use 4 digit 8 segment display? if i ? how can implement? could you please tell me program. also


    And if I wanted to put the days of the week in Italian, how can I do?

    The code is not working. what to do ?

    Same for me!