---
product_id: 37869618
title: "HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi"
brand: "hiletgo"
price: "$U1442"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/37869618-hiletgo-5pcs-ds3231-high-precision-rtc-real-time-clock-module
store_origin: UY
region: Uruguay
---

# High Precision RTC 400 KHz I2C Speed 3.3V/5V Compatibility HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi

**Brand:** hiletgo
**Price:** $U1442
**Availability:** ✅ In Stock

## Summary

> ⏳ Never Miss a Beat with Precision Timing!

## Quick Answers

- **What is this?** HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi by hiletgo
- **How much does it cost?** $U1442 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/37869618-hiletgo-5pcs-ds3231-high-precision-rtc-real-time-clock-module)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Reliability:** Features reset output and anti-shake input for dependable performance.
- • **Stay on Time, Every Time!:** Experience unparalleled accuracy with the DS3231 RTC module.
- • **Versatile Voltage Options:** Compatible with both 3.3V and 5V systems for ultimate flexibility.
- • **Lightning-Fast Communication:** Enjoy high-speed data transfer with a 400 KHz I2C serial bus.
- • **Temperature Tracking Made Easy:** Monitor your environment with a digital temperature sensor accurate to ±3°C.

## Overview

The HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module is designed for Arduino and Raspberry Pi enthusiasts, offering exceptional accuracy and reliability in timekeeping. With dual calendar clock functionality, it operates at both 3.3V and 5V, features a high-speed 400 KHz I2C serial bus, and includes a digital temperature sensor with a precision of ±3°C.

## Description

5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi

## Features

- High Precision DS3231 RTC Real Time Clock Module
- Two calendar clock
- Reset output and anti-shake inpu
- High speed (400 KHZ)I2C serial bus
- Precision of digital temperature sensor is ¡À3¡ãC

## Images

![HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi - Image 1](https://m.media-amazon.com/images/I/61KgOG-xXVL.jpg)

## Questions & Answers

**Q: Is the battery replaceable? What type? It looks like it's soldered on.**
A: It is NOT a capacitor.  It is a CR1025 lithium cell with solder tabs (not easy to find!)

DO NOT attempt to solder wires directly to a battery--it might explode!

Cheers es 73,
NV1T Tom

**Q: If you have power loss, does the real-time clock retain the correct time, i.e., does it have battery backup?**
A: It is NOT a capacitor; it's a CR1025 lithium cell with solder tabs.

Yes, the battery will retain the correct time in the absence of power.  There is
a tiny but measurable current drain, so the battery will eventually die, and it is NOT
a rechargeable type.

Cheers es 73,
NV1T Tom

**Q: Is this compatible with the esp8266?**
A: It is an I2C device and the esp8266 has I2C capability so it will work with the appropriate firmware.

**Q: Pictures dont show wiring diagram, wheres it at?**
A: It's an I2C device.  The pins are labeled thus:

Label   Meaning
------    ---------
   +           Vcc (5V)
   D           SDA
   C           SCL
   NC        (No Connection)
    -          Ground

Cheers es 73,
NV1T

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**Shop now:** [https://www.desertcart.uy/products/37869618-hiletgo-5pcs-ds3231-high-precision-rtc-real-time-clock-module](https://www.desertcart.uy/products/37869618-hiletgo-5pcs-ds3231-high-precision-rtc-real-time-clock-module)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-21*