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Gravity: DS1307 RTC Module

SKU: DFR0151

Upgraded DS1307 RTC Module, featuring a high-precision crystal and a compact size for miniaturized, high-accuracy timekeeping capabilities. Powered by a CR1220 battery with a lifespan of 3-5 years, it includes 4KB of EEPROM for storing alarms and events, and supports adjustable I2C addresses for flexible integration. The module is designed for ease of use, is compatible with DFRobot's Arduino library, and works seamlessly with Gravity IO shields. It is ideal for applications such as digital clocks, data loggers, and digital signal analysis systems. Emphasizing its suitability for IoT projects and time-sensitive applications, the module is renowned for its accuracy, reliability, and compatibility, providing a practical solution for developers seeking precise timing in their projects.

Detail of DS1307 I2C RTC module for Arduino projects-DFRobot product sku:DFR0151 image.

Downloadable Resources

  • Docs
  • Tech Specs

    • Specification

    Parameter Detail
    Operating voltage 5V
    Interface IIC/I2C (Gravity PH2.0-4P Interface & XH2.54 Pins)
    IC Output Data Hour, Minutes, Seconds, Week, Day, Month, Year
    Leap-year Compensation Included
    Accurate calendar Up to year 2100
    1Hz Output Pin Available
    Non-volatile memory 56 Bytes available to user
    ROM of EEPROM 4KB
    Size 0.81inch x 1.06inch (22mm x 27mm)
    Weight 6g

    Pinout

    DFR0151 Gravity: I2C DS1307 RTC Module Board Overview

    Num Label Description
    1 VCC 5V
    2 GND GND
    3 SCL I2C-Clock
    4 SDA I2C-Data
    5 SQ SQ
    6 VCC 5V
    7 GND GND
    8 SCL I2C-Clock
    9 SDA I2C-SDA

    FAQ

    • hello....we just realise that on our Order ID: 89145, we were bought Real Time Clock Module (DS1307) V1.1 28 pcs, but the one that coming to us was Real Time Clock Module (DS1307) (SKU:DFR0151), so, base on that can we and could we ask you to change / replace the RTC that you had wrong to sent us. ? Please advise and comment asap, thanks-juliet
      https://www.dfrobot.com/ind...

      Hi, DS pin is prepared for the DS18B20 temperature sensor, please ignore it.

    • Hello, I would like to know if this RTC module is compatible with my cubieboard kit (A10 -> http://www.dfrobot.com/inde... ?

      Thanks !
      Thierry

      Is it suitable for Raspberry Pi 2?

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