--- product_id: 340717084 title: "Adeept 2Pcs Real Time Clock Module DS3231 AT24C32 IIC RTC Memory Compatible with Raspberry Pi Arduino STM32 MCU DIY Projects" brand: "adeept" price: "£12.88" currency: GBP in_stock: true reviews_count: 3 category: "Adeept" url: https://www.desertcart.co.uk/products/340717084-adeept-2pcs-real-time-clock-module-ds3231-at24c32-iic-rtc store_origin: GB region: United Kingdom --- # 32KB AT24C32 memory storage Battery-backed RTC keeps time without power ±2ppm accuracy, ~1 min/year drift Adeept 2Pcs Real Time Clock Module DS3231 AT24C32 IIC RTC Memory Compatible with Raspberry Pi Arduino STM32 MCU DIY Projects **Brand:** adeept **Price:** £12.88 **Availability:** ✅ In Stock ## Summary > ⏳ Never lose a second — precision time, powered for your next big idea! ## Quick Answers - **What is this?** Adeept 2Pcs Real Time Clock Module DS3231 AT24C32 IIC RTC Memory Compatible with Raspberry Pi Arduino STM32 MCU DIY Projects by adeept - **How much does it cost?** £12.88 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/340717084-adeept-2pcs-real-time-clock-module-ds3231-at24c32-iic-rtc) ## Best For - adeept enthusiasts ## Why This Product - Trusted adeept brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Miniature 38x22x14mm board packs powerful features without hogging your project space. - • **Versatile I2C Connectivity:** Compatible with Raspberry Pi, Arduino, STM32 MCU, and cascades effortlessly with other I2C devices for ultimate DIY flexibility. - • **Precision Timekeeping Mastery:** DS3231M chip ensures ultra-accurate time with temperature compensation, so your projects never miss a beat. - • **Seamless Power Fail Protection:** Battery backup and voltage monitoring guarantee your clock stays on point even during power outages. - • **Comprehensive Calendar Functions:** Tracks seconds, minutes, hours, day, date, month, and leap years up to 2100 — future-proof your timekeeping. ## Overview This 2-piece DS3231 RTC module set features a high-precision, temperature-compensated clock chip with ±2ppm accuracy, backed by a 32KB AT24C32 memory chip. Operating on 3.3-5.5V with I2C interface, it supports full calendar functions including leap year compensation up to 2100. Battery backup ensures continuous timekeeping during power loss, making it ideal for Raspberry Pi, Arduino, and STM32 MCU DIY projects requiring reliable, compact, and accurate real-time clock solutions. ## Description You will get:2pcs clock moduleSpecifications:Dimension: 38mm* 22mm * 14mmWeight: 10g Working voltage : 3.3 -. 5 .5 V. Clock chip: high-precision clock chip DS3231M Memory chips:. AT24C32.Clock accuracy: 0-40 ℃, 2ppm accuracy, annual error is about 1 minuteWith 2 calendar alarm clocksProgrammable square wave outputThe chip comes with a temperature sensor with an accuracy of ± 3 ℃Memory chip: AT24C32 (storage capacity 32K)IIC bus interface, the maximum transmission speed is 400KHz (when the working voltage is 5V)Can be cascaded with other IIC devices. The 24C32 address can be modified by shorting A0 / A1 / A2. The default address is 0x57. Review: These little gadgets work perfectly! - I ordered these clock modules for a project to go along with an Arduino Nano and a 7219 LED matrix. The project was a success thanks, in no small part, to these things! They work great with the Arduino and they're so easy to connect. I'm so glad that the batteries were also included so I didn't have to purchase new ones. The battery helps keep the current time after programming the clock, even if you disconnect the entire system. In addition, these modules keep time very accurately and include a date function--and even a temperature one (I think), although I didn't use the thermometer piece for any of my projects. A big winner through and through! Review: Works well with common drivers. - I had no problems using this board. I used it to apply date and time to a temperature, humidity, pressure data logger. ## Features - 【Real Time Clock Chip】：keep the time running without power.supplying Working voltage : 3.3 -. 5 .5 V. Clock chip: high-precision clock chip DS3231M, Memory chips:. AT24C32. - 【Complete Clock Calendar】:Functionality Including Seconds, Minutes, Hours, Day, Date, Month, and Year, with Leap-Year Compensation Up to Year 2100. - 【Safe enough】: A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output. In addition, RST pin is monitored as generating a μP reset. - 【Mini Board】：Just mini board clock module but is a big used. - 【Contact US】 - If you have any questions during use, please feel free to contact us and we will reply you immediately. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B097PMNMQZ | | Best Sellers Rank | #5,823 in Single Board Computers (Computers & Accessories) | | Brand | Adeept | | Built-In Media | 2 Clock Modules | | Compatible Devices | Raspberry Pi, Arduino, STM32 MCU | | Connectivity Technology | I2C | | Customer Reviews | 5.0 out of 5 stars 7 Reviews | | Included Components | 2 Clock Modules | | Item Dimensions L x W x H | 1.5"L x 0.87"W x 0.55"H | | Item Weight | 10 Grams | | Manufacturer | Adeept | | Memory Storage Capacity | 32 KB | | Mfr Part Number | 2pcsDS3231 | | Model Name | 2pcsDS3231 | | Model Number | 2pcsDS3231 | | Operating System | Linux | | Processor Brand | STMicroelectronics or Broadcom or Atmel | | Processor Count | 1 | | Warranty Description | One year for warranty | ## Images ![Adeept 2Pcs Real Time Clock Module DS3231 AT24C32 IIC RTC Memory Compatible with Raspberry Pi Arduino STM32 MCU DIY Projects - Image 1](https://m.media-amazon.com/images/I/812kNfUVpgL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ These little gadgets work perfectly! *by N***C on July 27, 2022* I ordered these clock modules for a project to go along with an Arduino Nano and a 7219 LED matrix. The project was a success thanks, in no small part, to these things! They work great with the Arduino and they're so easy to connect. I'm so glad that the batteries were also included so I didn't have to purchase new ones. The battery helps keep the current time after programming the clock, even if you disconnect the entire system. In addition, these modules keep time very accurately and include a date function--and even a temperature one (I think), although I didn't use the thermometer piece for any of my projects. A big winner through and through! ### ⭐⭐⭐⭐⭐ Works well with common drivers. *by B***L on September 17, 2024* I had no problems using this board. I used it to apply date and time to a temperature, humidity, pressure data logger. ### ⭐⭐⭐⭐⭐ Todo bien *by R***S on February 13, 2025* Todo bien --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/340717084-adeept-2pcs-real-time-clock-module-ds3231-at24c32-iic-rtc](https://www.desertcart.co.uk/products/340717084-adeept-2pcs-real-time-clock-module-ds3231-at24c32-iic-rtc) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-01*