DS3231 Timer RTC Module

Key Features:-

1. Real-Time Clock (RTC): The DS3231 module can accurately keep track of time in hours, minutes, seconds, and dates (day, month, year). It provides reliable timekeeping even in the absence of power, thanks to its built-in backup battery.

2. Battery Backup: The module typically includes a coin cell battery holder (e.g., CR2032) to maintain timekeeping when the primary power source is disconnected.

3. Digital Interface: It communicates with microcontrollers and other digital devices using a simple I2C (Inter-Integrated Circuit) interface, making it easy to interface with popular platforms like Arduino.

4. Serial Communication: The DS3231 module supports I2C communication, allowing for easy configuration and reading of time and date information.

5. High Accuracy: The DS3231 RTC chip is known for its high accuracy, typically within a few seconds per month, making it suitable for applications requiring precise timekeeping.

6. Temperature Compensation: The DS3231 includes an integrated temperature sensor and compensation circuitry to maintain accurate timekeeping even in varying temperature environments.

7. Alarm Functionality: The module can be configured to trigger alarms at specific times or dates. This feature is useful for applications requiring timed events or notifications.

8. Square Wave Output: The module can generate a square wave output signal with selectable frequencies (e.g., 1Hz, 4.096kHz, 8.192kHz). This output can be used as a clock signal or for other timing purposes.