This is a fork of JeeLab's fantastic real time clock library for Arduino.

For details on using this library with an RTC module like the DS1307, see the guide at: https://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit/overview

To download. click the DOWNLOADS button to the right, and rename the uncompressed folder RTClib.

Place the RTClib folder in your arduino_sketch_folder/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.

Basic functions (see libraries/examples of how to use):

• .begin
• .adjust
• .isrunning
• .now

DS1307 specific functions:

• .readnvram
  
• .writenvram
• .readSqwPinMode
• .writeSqwPinMode

PCF8523 specific functions:

• .writeSqwPinMode

DS3231 specific functions:

• .getTemperature
• .getA1Time
• .setA1Time
• .setAlarm1Simple
• .turnOnAlarm
• .turnOffAlarm
• .checkAlarmEnabled
• .checkIfAlarm

Millis (software RTC) specific functions:

• .checkRollover

##Compatibility
DS3231 functionality tested on Arduino Pro Mini (Jan 8, 2016 - MrAlvin)

For other compatibility details see https://github.com/adafruit/RTClib

ToDo:

• debug Alarm2
• make DS3231 SQW functon calls similar to DS1307 function calls