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Arduino library for setting and reading from the DS1307 real time clock (RTC)
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Jim Lindblom
Latest commit 68f64b1 Dec 7, 2016

SparkFun Real Time Clock Module (DS1307) Arduino Library

SparkFun Real Time Clock Module

SparkFun Real Time Clock Module (BOB-12708)

Arduino library for the I2C-based DS1307 real time clock (RTC). Allows you to set and read the time and date, and configure the SQW output pin.

Repository Contents

  • /examples - Example sketches for the library (.ino). Run these from the Arduino IDE.
  • /src - Source files for the library (.cpp, .h).
  • keywords.txt - Keywords from this library that will be highlighted in the Arduino IDE.
  • - General library properties for the Arduino package manager.


Products that use this Library

Version History

  • V_1.0.0 - Initial library release

License Information

This product is open source!

Please review the file for license information.

If you have any questions or concerns on licensing, please contact

Distributed as-is; no warranty is given.

  • Your friends at SparkFun.
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