RTClib

• RTClib
• Definitions in source:RTClib/RTClib.h
• Examples
• Credits

The RTC library is a collection of tools to deal with dates and times, and to interface with RTC chips, clock radio modules, etc.

Download as ZIP archive, browse the repository at source:RTClib, or track changes via subversion using:

svn co svn://svn.jeelabs.org/jeelabs/trunk/libraries/RTClib

There's also a fork of this library on GitHub, by Adafruit.

Use Arduino IDE version 18 or later, and put the "RTClib" folder inside a "libraries" folder next to your sketches.

Definitions in source:RTClib/RTClib.h

• class DateTime
• class RTC_DS1307
• class RTC_Millis

Examples

• datecalc sketch
• ds1307 sketch
• plugrtc sketch
• softrtc sketch

Credits

RTClib was written from scratch by Jean-Claude Wippler at JeeLabs.
The idea to set the date and time from the __DATE__ and __TIME__ string macros in C was suggested by Limor Fried at Adafruit.