DS3231 AT24C32 IIC Precision RTC Clock Module with Battery
DS3231 AT24C32 IIC Precision RTC Clock Module with Battery
DS3231 AT24C32 IIC Precision Real-Time Clock (RTC) Module
Keep your electronics projects perfectly in sync with the DS3231 AT24C32 IIC Precision Real-Time Clock Module. Designed for Arduino, Raspberry Pi, and other microcontroller platforms, this compact module delivers highly accurate timekeeping thanks to its temperature-compensated crystal oscillator (TCXO). Whether you're building a data logger, automated scheduler, or any time-sensitive DIY project, this module gives you the reliability you need.
Available in two variants — with backup battery (CR2032 coin cell included) or without battery — so you can choose the configuration that best fits your build.
Key Features
- High-Precision Timekeeping: DS3231 TCXO maintains accurate time even with temperature fluctuations
- AT24C32 EEPROM: 32Kbit onboard memory for storing data and configuration settings
- IIC / I²C Interface: Simple two-wire communication, compatible with Arduino, Raspberry Pi, ESP8266/ESP32, and more
- Backup Battery Support: Keeps the clock running even when the main power is disconnected (battery variant)
- Compact SMD Design: Small form factor fits neatly into breadboards and PCB layouts
- Wide Voltage Range: Works with 3.3V and 5V systems
- Condition: Brand new
Specifications
- Clock IC: DS3231
- Memory IC: AT24C32 (32Kbit EEPROM)
- Interface: IIC / I²C
- Package Type: SMD Module
- Quantity: 1 module per order
- Made in: Mainland China
What's in the Box
- 1 × DS3231 AT24C32 IIC RTC Module (with or without battery depending on variant selected)
Compatible With
- Arduino Uno, Mega, Nano, Mini
- Raspberry Pi (all models)
- ESP8266 / ESP32
- STM32 and other I²C-capable microcontrollers
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Frequently Asked Questions
Q: What is the difference between the DS3231 module with battery and without battery?
A: The DS3231 module with battery includes a CR2032 coin cell backup battery. This means the real-time clock continues to keep accurate time even when your main device is powered off. The version without battery still functions as a precision RTC clock module but will lose its time setting when power is removed unless you add a battery separately.
Q: Is this DS3231 RTC module compatible with Arduino and Raspberry Pi?
A: Yes! The DS3231 AT24C32 IIC module uses the standard I²C (IIC) two-wire interface, making it fully compatible with Arduino (Uno, Nano, Mega), Raspberry Pi, ESP8266, ESP32, STM32, and virtually any other microcontroller that supports I²C communication.
Q: What can the AT24C32 EEPROM memory be used for?
A: The onboard AT24C32 provides 32Kbit of non-volatile EEPROM storage. You can use it to save configuration data, sensor readings, user settings, or any small data set that needs to persist between power cycles — making this module ideal for data logging and automation projects.