--- product_id: 262105357 title: "DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5)" brand: "wishiot" price: "£0.21" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/262105357-ds3231-real-time-clock-module-high-precision-at24c32-iic-rtc store_origin: GB region: United Kingdom --- # 32K AT24C32 memory 3.3-5V dual voltage ±2ppm accuracy DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) **Brand:** wishiot **Price:** £0.21 **Availability:** ✅ In Stock ## Summary > ⏳ Stay ahead of time, or risk falling behind! ## Quick Answers - **What is this?** DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) by wishiot - **How much does it cost?** £0.21 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/262105357-ds3231-real-time-clock-module-high-precision-at24c32-iic-rtc) ## Best For - wishiot enthusiasts ## Why This Product - Trusted wishiot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Pack Advantage:** Get 5 high-precision RTC modules in one pack—ideal for prototyping, scaling, or sharing with your dev squad. - • **Robust I2C Communication:** Fast 400kHz I2C interface supports cascading multiple devices, perfect for complex Arduino and Raspberry Pi setups. - • **Flexible Power Compatibility:** Operates seamlessly on both 3.3V and 5V systems, powered by a standard CR2032 battery (not included) for uninterrupted timing. - • **Integrated Temperature Sensor:** Built-in temp sensor ensures clock stability and compensates for environmental changes with ±3°C accuracy. - • **Precision Timekeeping Mastery:** DS3231 chip delivers ultra-accurate time with just 1 minute drift per year—never miss a beat in your projects. ## Overview The DS3231 Real Time Clock Module is a high-precision, temperature-compensated RTC with integrated crystal oscillator and 32K AT24C32 memory. Compatible with 3.3V and 5V systems, it features a fast I2C interface and supports calendar alarms and leap year compensation up to 2100. Sold in packs of five, it’s perfect for Arduino, Raspberry Pi, and other microcontroller projects requiring reliable, accurate timekeeping. ## Description Description: The DS3231 is a high precision 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. You can use a typical C-R-2032 3V b-a-t-t-ery to power this RTC module, kindly note that the b-a-t-teries is not included in this listing! Specification: Operating voltage: 3.3-5V Clock chip: high-precision clock chip DS3231 Clock Accuracy range: 0-40 ℃, the accuracy is 2ppm, the error is about 1 minute for a year With 2 Calendar alarm clocks Programmable square-wave output Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation The chip itself is with temperature sensor whose accuracy is around ± 3 ℃ Memory chips: AT24C32 (storage capacity 32K) IIC bus interface, the transmission speed of 400KHz @ working voltage of 5V Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57 Pin Description: 32KHz：32KHz output SQW：Active LOW Interrupt or Square wave output SCL：Serial Clock Input SDA：Serial Data I/O VCC：DC Power Pin GND：Ground Connection schematics ( Wiring with Arduino for example, see attached picture): SCL → A5 SDA → A4 VCC → 5V GND → GND If you use other board with this RTC module, you need check and change their SCL and SDA pins. Nano: SDA→A4, SCL→A5 MEGA: SDA→20, SCL→21 Leonardo: SDA→20, SCL→21 Note: Working with the RTC requires two important steps: 1, Setting the current time, so that the RTC knows what time it is. 2, Retaining the time, so that the RTC module always gives the correct time, even when it is turned off. Package Includes: 5 X DS3231 RTC Clock Module (Ba-ttery is NOT included) ## Features - 1, Main chip DS3231 is a high precision RTC IC with I2C communication, it has integrated crystal oscillator and temperature sensor and hence you don't have to connect an external crystal or temp sensor - 2, DS3231 RTC module can work on either 3.3V or 5V. You can use a typical C-R-2032 3V b-a-t-t-ery to power this RTC module - 3, You need prepare C-R-2032 or L-I-R-2032 b-a-t-t-ery since it is not included in this listing - 4,Clock chip: high-precision clock chip DS3231(there are 3 different chips for this clock module, DS3231N,DS3231SN and DS3231M, we send it by randomly - 5, What you will get is: 5 X DS3231 RTC module. If you have any question or need any support, pls feel free to contact us by click "WISHIOT" under the shopping cart ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Wishiot | | Package Dimensions | 11.7 x 7 x 2.3 cm; 35 g | | Item model number | LS1201X5 | | Manufacturer | Wishiot | | Wireless Type | 2.4 GHz Radio Frequency | | Voltage | 5 Volts | | Are Batteries Included | No | | Item Weight | 35 g | ## Images ![DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) - Image 1](https://m.media-amazon.com/images/I/61782VWVEKL.jpg) ![DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) - Image 2](https://m.media-amazon.com/images/I/51dp7IhGZLL.jpg) ![DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) - Image 3](https://m.media-amazon.com/images/I/61F3wsRYC4L.jpg) ![DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) - Image 4](https://m.media-amazon.com/images/I/71MrkfyzYkL.jpg) ![DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) - Image 5](https://m.media-amazon.com/images/I/71BNVS9y0oL.jpg) ## Questions & Answers **Q: If i run it off of 3.3v, and use a lir2032 battery (which are listed as 3.6v), will it actually charge those batteries?** A: These are real-time clocks. Not chargers. Mine required 5vdc coming in. ## Frequently Bought Together - Wishiot DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) - uxcell 623ZZ Ball Bearing 3mm x 10mm x 4mm Double Shielded 623-2Z 80023 Deep Groove Bearings, Carbon Steel (Pack of 20) - Walfront 3D Printer Engraving Expansion Board Kit Controller CNC V4+Nano 3.0 Board+A4988 Driver with USB Cable for --- ## 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/262105357-ds3231-real-time-clock-module-high-precision-at24c32-iic-rtc](https://www.desertcart.co.uk/products/262105357-ds3231-real-time-clock-module-high-precision-at24c32-iic-rtc) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*