DS1307 Real Time Clock RTC Module

The DS1307 RTC Module is a reliable real-time clock designed for accurate timekeeping in electronic and embedded applications. It keeps track of seconds, minutes, hours, day, date, month, and year, and automatically adjusts for leap years.

This module communicates via the I²C interface, making it compatible with popular microcontrollers such as Arduino, ESP32, Raspberry Pi, and STM32. It includes an onboard AT24C32 EEPROM that provides 32Kbit (4KB) of additional non-volatile memory for data storage.

The CR2032 battery holder allows the module to maintain time even when the main power supply is disconnected, ensuring long-term accuracy. The DS1307 can also be used for building alarm clocks, data loggers, and time-based automation systems.
This version includes a CR2032 battery holder (battery not included).

Features

• Real Time Clock (RTC) based on the DS1307 IC

• Tracks seconds, minutes, hours, day, date, month, and year

• Automatic leap year and month-end adjustment

• Communication via I²C interface (compatible with Arduino and Raspberry Pi)

• Onboard AT24C32 (32Kbit) EEPROM for data storage

• CR2032 battery holder for backup timekeeping (battery not included)

• Low power consumption for long-term use

• 1Hz output pin for timing and pulse generation applications

Specifications

Package Includes

• 1 × DS1307 RTC Module (with CR2032 battery holder, battery not included)

Applications

• Real-time clock for microcontroller-based systems

• Time-stamped data logging

• Alarms and event scheduling projects

• IoT devices requiring accurate timekeeping

• Low-power embedded automation projects