DS3231 RTC Real Time Clock Module (High Precision I2C RTC Module with Battery Backup)

The DS3231 RTC Module is a high-precision real-time clock module designed to provide accurate time and calendar functions for embedded systems and microcontroller projects. Based on the DS3231 temperature-compensated real-time clock (RTC) IC, it features an integrated crystal oscillator and digital temperature compensation for exceptional long-term accuracy. The module communicates via the I2C interface and includes a backup battery holder to maintain time and date information during power interruptions. It is ideal for Arduino, ESP32, ESP8266, STM32, Raspberry Pi, data logging, automation, IoT, and clock applications.

Key Features -

• Based on DS3231 high-precision RTC IC

• Integrated temperature-compensated crystal oscillator (TCXO)

• High-accuracy real-time clock

• I2C serial communication interface

• Battery backup support

• Maintains time during power loss

• Supports 12-hour and 24-hour time formats

• Low power consumption

• Compact PCB module

• Easy interface with microcontrollers

Specifications -

• Product type - Real Time Clock Module

• RTC IC - DS3231

• Operating voltage - 3.3V to 5V DC

• Communication interface - I2C

• I2C address - 0x68

• Time format - 12-Hour / 24-Hour

• Clock functions - Seconds, Minutes, Hours, Day, Date, Month and Year

• Oscillator - Integrated Temperature-Compensated Crystal Oscillator (TCXO)

• Backup battery - CR2032 Coin Cell (Module Dependent)

• Mounting type - PCB Module

Applications -

• Data logging systems

• Digital clocks

• Home automation

• IoT devices

• Industrial automation

• Alarm systems

• Embedded system development

• Educational electronics