---
product_id: 67356741
title: "AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book!"
brand: "azdelivery"
price: "€ 0.02"
currency: EUR
in_stock: false
reviews_count: 13
url: https://www.desertcart.be/products/67356741-azdelivery-3-x-ds3231-rtc-real-time-clock-i2c-compatible
store_origin: BE
region: Belgium
---

# AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book!

**Brand:** azdelivery
**Price:** € 0.02
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book! by azdelivery
- **How much does it cost?** € 0.02 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/67356741-azdelivery-3-x-ds3231-rtc-real-time-clock-i2c-compatible)

## Best For

- azdelivery enthusiasts

## Why This Product

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

## Description

Product Description The AZ-Delivery Real Time Clock Module with DS3231 is a low-cost, extremely accurate I2C realtime clock (RTC) with an integrated temperature compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3231 is available in commercial (0°C to 70°C) and industrial (-40°C to +85°C) temperature ranges, and is offered in a 16-pin, 300-mil SO package. Temperature is measured every minute to adjust the oscillator for correction purposes. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operated in either the 24-hour or 12-hour format with an AM/PM indicator. Two programmable time of day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I2C bidirectional bus. Thanks to the supplied button cell and integrated EEPROM, the time is maintained even if the power supply fails. Easy cabling due to the used I2C bus and of course the IIC address can be changed. An additional output for the 32kHz signal is also available and can be activated via a register. The RTC is downward compatible and can also be used with the library for the DS1302. ✔️ Low-power consumption ✔️ Two Time-of-Day Alarms ✔️ Programmable Square-Wave Output ✔️ 3.3V Operation ✔️ Register for Aging Trim ✔️ UL Recognised ✔️ RST Input/Output ✔️ Battery Backup Input for Continuous Timekeeping For top quality microelectronics, AZ-Delivery Vertriebs GmbH is your go to. We provide an array of application examples, full installation guides, eBooks, libraries, and all-round assistance . AZ-Delivery, your microelectronics expert .

Review: Reliable RTC Modules for DIY Automation Projects - I ordered this pack of DS3231 RTC modules for a DIY project to control regular dosing of plant nutrients in my fish tank, and they’ve worked exactly as expected. The timekeeping is very accurate, and it’s reassuring that the clock retains the time even if power is interrupted. The modules are easy to wire thanks to the I2C interface, and they integrated smoothly with my microcontroller using standard libraries. Setup was straightforward, even for a custom project, and everything behaved consistently during testing. The included e-book is a helpful bonus, especially for quick reference and initial setup. Overall, these RTC modules feel well made and dependable, making them a solid choice for Arduino or Raspberry Pi projects where precise timing is important.
Review: works great! - Working well easy to setup... I've modified one of them by removing the resistor to stop it charging the battery..great price too.

## Features

- 3 x real time clock RTC compatible with DS3231 I2C real-time clock.
- The high-precision compatible with DS3231 watch quartz, used in the AZDelivery compatible with DS3231 RTC, reduces the deviation to a few minutes per year
- The time remains stored even in the event of a power failure. This means that the date can also be realized taking into account leap years up to the year 2100.
- Easy wiring via only four pins thanks to the I2C interface. Easy integration into projects thanks to ready-made open source libraries. Our Real Time Clocks are compatible with all standard Raspberry models.
- This product contains an e-book that contains useful information about the beginning of your project, it helps with a quick setup and saves time in the configuration process. We offer a range of application examples, complete installation guides and libraries.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077XN4LL4 |
| Available Memory Slots | 3 |
| Best Sellers Rank | 48,279 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 382 in Motherboards |
| Brand | AZDelivery |
| Brand Name | AZDelivery |
| CPU Model | Mobile CPU |
| Chipset Family | Real-Time Clock |
| Chipset Type | DS3231 |
| Chipset type | DS3231 |
| Compatible Devices | [PARTIAL] Raspberry Pi |
| Compatible Processors | Atmel AVR (e.g., ATmega328P) and Broadcom BCM283x (e.g., BCM2835, BCM2836, BCM2837) |
| Compatible devices | [PARTIAL] Raspberry Pi |
| Compatible processors | Atmel AVR (e.g., ATmega328P) and Broadcom BCM283x (e.g., BCM2835, BCM2836, BCM2837) |
| Customer Reviews | 4.3 out of 5 stars 1,897 Reviews |
| Global Trade Identification Number | 04251850507959, 07426817667107 |
| Graphics Card Interface | Integrated |
| Main Power Connector Type | 24-Pin |
| Manufacturer | AZDelivery |
| Manufacturer Part Number | 3x DS3231 |
| Memory Clock Speed | 2133 MHz |
| Memory clock speed | 2133 MHz |
| Model Name | 7ce10d33-6be8-436c-a11c-50116c58a892 |
| Model Number | 7ce10d33-6be8-436c-a11c-50116c58a892 |
| Number of Ports | 1 |
| Platform | Not Machine Specific |
| RAM Memory Technology | DDR3 |
| RAM memory technology | DDR3 |
| System Bus Standard Supported | Modern System Bus Standard |

## Product Details

- **Brand:** AZDelivery
- **CPU model:** Mobile CPU
- **Chipset type:** DS3231
- **Compatible devices:** [PARTIAL] Raspberry Pi
- **Compatible processors:** Atmel AVR (e.g., ATmega328P) and Broadcom BCM283x (e.g., BCM2835, BCM2836, BCM2837)
- **Main power connector type:** 24-Pin
- **Memory clock speed:** 2133 MHz
- **Model name:** 7ce10d33-6be8-436c-a11c-50116c58a892
- **Platform:** Not Machine Specific
- **RAM memory technology:** DDR3

## Images

![AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book! - Image 1](https://m.media-amazon.com/images/I/818veBfyAsL.jpg)
![AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book! - Image 2](https://m.media-amazon.com/images/I/81bAuuGAyiL.jpg)
![AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book! - Image 3](https://m.media-amazon.com/images/I/81wprV3WSRL.jpg)
![AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book! - Image 4](https://m.media-amazon.com/images/I/81nfPoJQIuL.jpg)
![AZDelivery 3 x DS3231 RTC Real Time Clock I2C compatible with Arduino and Raspberry Pi including E-Book! - Image 5](https://m.media-amazon.com/images/I/819Qdpxl08L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable RTC Modules for DIY Automation Projects
*by A***O on 31 January 2026*

I ordered this pack of DS3231 RTC modules for a DIY project to control regular dosing of plant nutrients in my fish tank, and they’ve worked exactly as expected. The timekeeping is very accurate, and it’s reassuring that the clock retains the time even if power is interrupted. The modules are easy to wire thanks to the I2C interface, and they integrated smoothly with my microcontroller using standard libraries. Setup was straightforward, even for a custom project, and everything behaved consistently during testing. The included e-book is a helpful bonus, especially for quick reference and initial setup. Overall, these RTC modules feel well made and dependable, making them a solid choice for Arduino or Raspberry Pi projects where precise timing is important.

### ⭐⭐⭐⭐⭐ works great!
*by M***S on 15 July 2020*

Working well easy to setup... I've modified one of them by removing the resistor to stop it charging the battery..great price too.

### ⭐⭐⭐⭐ Great value, reasonable performance.
*by S***F on 15 March 2025*

Have tested with ESP32 and these units have kept time accurately for 24 hours. Good enough for me as ESP32 rtc gains about 35 seconds per hour in deepsleep mode. The product description might lead you you believe the I2C address of the RTC can be changed, but it cannot, only the flash memory address can be changed. However, not a problem for me as 0x68 seems an uncommon one, or at least the 3 other I2C devices I have use different addresses. I am using micropython, and a good well documented library has been written by Peter Hinch called ds3231_gen.py. Google it, its on github. WARNING. Units come with a backup battery that is not rechargeable, but the units charge the backup battery by default. Either replace the CR2032 with the equivalent rechargeable type, or unsolder/cut the resistor shown in the photo. Only 4 stars because rtc address cannot be changed, and also temp sensor is +/- 3 deg C, which is pretty poor.

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---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-06-15*