HiLetgo
HiLetgo 5pcs DS3231 AT24C32 Clock Module
Best high-precision timing solution for DIY microcontroller enthusiasts.
Enhance your microcontroller projects with this 5-piece bundle of HiLetgo DS3231 AT24C32 Clock Modules. Each module integrates the highly accurate DS3231M real-time clock chip with AT24C32 memory, perfect for precise timing and data storage in Arduino and similar systems. Designed for reliability, these modules operate efficiently within a 3.3V to 5.5V range, making them a versatile choice for hobbyists and engineers. This pack offers excellent value for integrating dependable timekeeping into your electronic builds. Batteries are not included.
$25.98
Owner Satisfaction
4.5
/ 5
Category Rank
476
/ 1004
#476 in Integrated Circuits & Chips
Price vs Category Average
-70%
Below average
Clock Chip
3231
/ High-precision DSM
Who it's for
- Makers requiring precise timekeeping for long-term data logging projects
- Educators and hobbyists stocking up for multiple electronics builds
- Developers needing extra storage for configuration settings and sensor data
Who should skip it
- Engineers needing guaranteed reliability for mission-critical industrial applications
- Shoppers expecting a complete, ready-to-use kit out of the box
- Programming novices intimidated by managing multiple I2C device addresses
Performance breakdown
Timing Accuracy
The DS3231M chip provides industry-leading precision for long-term timekeeping applications.
Integration Versatility
Wide voltage compatibility ensures seamless operation across various microcontroller platforms.
Prototyping Ease
Breadboard-friendly layout allows for rapid assembly in custom electronic builds.
Memory Capacity
Integrated AT24C32 EEPROM offers sufficient storage for basic logging and configuration data.
Development Support
Extensive Arduino library availability simplifies the initial programming and setup process.
Bundle Value
Five-piece pack provides an economical solution for scaling multiple hardware projects.
Key Specs
Clock Chip
High-precision DS3231M
Memory Chip
AT24C32
Operating Voltage
3.3 V to 5.5 V
Function
Real Time Clock Module (RTC)
Quantity
5 units per pack
Form Factor
Breadboard friendly
Programming Interface
USB-UART
Power Source Options
USB
Features
- High-precision DS3231M clock chip
- Integrated AT24C32 memory
- Arduino compatible
- Reliable real-time clock
- Wide voltage operation
- Convenient 5-piece bundle
- Breadboard friendly design
What customers say
This five pack of DS3231 clock modules earns high praise primarily for its exceptional accuracy and outstanding value. Users consistently report that the temperature compensated oscillator keeps time far more reliably than older RTC options, making it ideal for critical timing projects. The inclusion of the AT24C32 EEPROM adds convenient nonvolatile storage. While the low per unit cost is a major draw, some users note minor inconsistencies in manufacturing, such as soldering quality on occasion. Despite these small trade offs, the modules are viewed as highly functional and dependable workhorses. This bundle is strongly recommended for hobbyists and educators needing multiple precise timing sources.
Know before you buy
No, the batteries are not included in this pack. You will need to purchase a compatible CR2032 coin cell battery separately to maintain timekeeping when the main power is disconnected.
Yes, the module is designed to operate within a voltage range of 3.3V to 5.5V. This makes it compatible with both 3.3V systems like ESP32 or Raspberry Pi and 5V systems like the standard Arduino Uno.
The AT24C32 is an EEPROM memory chip integrated onto the module. It provides 32K bits of non-volatile storage, which is useful for saving data, logs, or configuration settings that you want to persist even after the power is turned off.
Yes, the module is fully compatible with the Arduino IDE. You can easily find and use existing open-source libraries, such as the RTClib, to interface with the DS3231 chip and manage timekeeping functions.
The DS3231M is a high-precision real-time clock that includes an integrated temperature-compensated crystal oscillator. This allows it to maintain much better timekeeping accuracy over varying temperatures compared to cheaper, standard RTC modules.
Still have a question?
Ask Hayley anything about this product before you decide.