DS3231 RTC Timer Module for Arduino & Raspberry Pi | High-Precision Real Time Clock

The DS3231 RTC (Real-Time Clock) Timer Module is a highly accurate and low-power timekeeping module designed for use with Arduino, Raspberry Pi, ESP8266, STM32, and other microcontrollers. Unlike many RTC modules, the DS3231 includes a built-in temperature-compensated crystal oscillator (TCXO), ensuring exceptional precision in tracking time—even during power outages, thanks to its battery backup (CR2032 supported).

Whether you’re building a data logger, an alarm system, a time-triggered automation device, or a calendar-based scheduling system, this module offers I2C communication and stores seconds, minutes, hours, day, date, month, and year—leap year accurate up to 2100.

✅ Key Features:

• High-accuracy DS3231 Real-Time Clock chip

• Temperature-compensated crystal oscillator (TCXO)

• Supports I2C interface for easy microcontroller integration

• Battery backup supported (CR2032 not included)

• Timekeeping functions: Seconds, Minutes, Hours, Day, Date, Month, Year

• Accurate to ±2ppm from 0°C to +40°C

🛠️ Applications:

• Data logging and time-stamped records

• Clock displays and scheduling systems

• Automated irrigation or lighting systems

• Time-based alarms and notifications

• Smart home and IoT devices

• Industrial automation with real-time scheduling