---
title: "Accurate RTC Shield"
description: "Status: In Progress, Last Update: October 14, 2012 GiHub: (https://github.com/baldengineer/Accurate-RTC-Shield \"GitHub Repository for Arduino Accurate RTC Shield\") ## Abstract…"
canonical: "https://www.baldengineer.com/accurate-rtc-shield.html"
author: "James Lewis"
date: "2012-05-29T03:32:24Z"
lastmod: "2015-03-24T17:37:07Z"
image: "https://www.baldengineer.com/wp-content/uploads/2014/12/ds3231_shield_125px.jpg"
categories: ["accurate-rtc-shield"]
tags: ["arduino-stuff","ds3231","rtc","shield"]
---

# Accurate RTC Shield


Status:  In Progress, Last Update:  October 14, 2012

GiHub:  [https://github.com/jamesc4s/Accurate-RTC-Shield](https://github.com/baldengineer/Accurate-RTC-Shield "GitHub Repository for Arduino Accurate RTC Shield")

## Abstract

The DS3231 is a Precise Real-Time Clock from Maxim. It requires almost no external components and is temperature compensated. This chip solves some of the RTC issues associated with the DS1307. This Arduino shield will make it simple to add a RTC to any project, especially one where lost time is not acceptable.

## Electronics

 **Parts list**:

- DS3231S
- Pull-Up Resistors
- Battery
- Battery Holder

#### Schematic:

PDF:  [rtc\_ds3231\_shield\_rev2.pdf](//content.baldengineer.com/wp-content/uploads/2012/05/rtc_ds3231_shield_rev2.pdf) (61kb)
Eagle Files:   [https://github.com/jamesc4s/Accurate-RTC-Shield/tree/master/eagle](https://github.com/baldengineer/Accurate-RTC-Shield/tree/master/eagle "EAGLE files for the RTC Shield")

## Firmware

Coming...

## Acklowedgements

(Links to be added)

1\.  [Arduino Project](http://arduino.cc)

2\.  [Macetech's ChronoDot](http://docs.macetech.com/doku.php/chronodot_v2.0 "Chronodot from MaceTech") (for understanding the DS3231).