Description

Keep your microcontrollers tracking time flawlessly with the high-precision DS3231 RTC Module. Unlike basic clock modules that drift over time due to external temperature changes, this advanced board features an onboard Temperature-Compensated Crystal Oscillator (TCXO). It accurately manages seconds, minutes, hours, day, date, month, and year data with built-in leap-year compensation valid up to the year 2100.

Fully compatible with Arduino, Raspberry Pi, ESP32, and PIC circuits, this module communicates effortlessly via a simple 2-wire I2C interface, making it perfect for custom alarms, attendance systems, or localized automated controllers.

Key Features

• Extreme Timekeeping Accuracy: The built-in TCXO crystal yields an exceptional $\pm2\text{ ppm}$ accuracy rate, resulting in a time drift of less than a single minute per year.

• Integrated Memory Storage: Houses an onboard AT24C32 EEPROM chip providing 32Kbit (4KB) of non-volatile storage space to log critical user settings or sensor records.

• Smart Power Switching: Includes an onboard battery cradle for a backup CR2032 coin cell, letting the module retain perfect time configuration even when your main system loses power completely.

• Internal Temperature Sensor: Features an internal ambient temperature tracking sensor readable over the I2C registers with a $\pm3^\circ\text{C}$ margin of accuracy.

Technical Specifications

Applications in Bangladesh

• Weather & Environmental Stations: Used extensively by university project teams to timestamp automated sensor readings onto SD cards.

• Automated Irrigation Schedules: Perfect for rooftop garden automation systems across Dhaka, kicking pumps into action at exact planned daily intervals.

• Digital Display Projects: The backbone clock reference module for building large custom multi-segment wall clocks or school/office bell timers.