DS3231 RTC Module

DS3231 RTC Module – Real-Time Clock Module Product Description: The DS3231 RTC Module is a highly accurate, low-power Real-Time Clock module designed to keep track of time and date even when the main power supply is disconnected. It uses the DS3231 high-precision RTC IC and communicates with microcontrollers such as Arduino, ESP32, Raspberry Pi, and other development boards through the I²C interface. The module includes a battery backup to maintain accurate time during power interruptions, making it ideal for clocks, data loggers, automation systems, timers, and embedded projects. Key Features High-accuracy DS3231 RTC chip Maintains time when the main power is disconnected Built-in temperature sensor I²C communication for easy connection Automatic leap-year correction Supports 12-hour and 24-hour time formats Battery backup using CR2032 Suitable for Arduino and other microcontroller projects Applications Digital clocks and watches Arduino/ESP32 clock projects Data logging systems Automatic timers Alarm systems Home automation Industrial automation Access control systems Scheduling and time-based control projects Typical Connection: VCC → 5V/3.3V | GND → GND | SDA → I²C SDA | SCL → I²C SCL Note: The exact module board design and included battery may vary slightly between manufacturers.