DS3231 RTC Module I2C RTC Real Time Clock Module with CR2032 Battery Backup + AT24C32 EEPROM (IIC) ZS-042 Board for Arduino/Raspberry Pi/Jetson Nano

Get stable, accurate timekeeping for your electronics projects using the DS3231 RTC module, a high-precision real time clock module built around the temperature-compensated DS3231 chip. This DS3231 RTC module is widely used in embedded systems because it maintains time reliably and supports backup power through a coin cell holder for CR2032 battery backup.

Communication is handled through I2C RTC (also called IIC RTC module or DS3231 I2C RTC), making wiring simple and compatible with popular development boards. If you need a dependable RTC module for Arduino, this is one of the most common choices thanks to broad library support and tutorials. 

Whether you’re building a clock, a timer, a data logger, or any project that requires time stamping, this I2C RTC module offers a clean and reliable solution for Arduino, Raspberry Pi, and Jetson Nano I2C projects.

Key Features / Highlights

DS3231 real time clock module for high accuracy and stable timekeeping

Easy integration via I2C / IIC interface (DS3231 I2C RTC / IIC RTC module)

Onboard AT24C32 EEPROM / AT24C32 memory chip (store settings/data)

Supports CR2032 coin cell for battery backup (keeps time during power loss)

Common board type: ZS-042 DS3231 module

Ideal Arduino RTC module, Raspberry Pi RTC, and Jetson Nano RTC projects

Great for timers, alarms, automation scheduling, IoT time-stamping & data logging

Specifications

Module Type: RTC module / Real time clock module

RTC Chip: DS3231 (temperature-compensated, high precision RTC)

Memory Chip: AT24C32 / AT24C32 EEPROM

Interface: I2C / IIC (I2C RTC)

Backup Battery: CR2032 holder

Common Board Name: ZS-042

Use Case: Arduino, Raspberry Pi, Jetson Nano, embedded systems timekeeping

Package Includes

1 × DS3231 RTC module (ZS-042 board with AT24C32)