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*Arduino* library for accessing the maxim integrated . This clock requires no external components and with an internal temperature-compensated oscillator it is extremely accurate, to within ±5ppm or ±0.432 Second/Day. The library allows setting the date/time and alarms as well as accessing other information on the DS3231M.
# DS3231 Support
The DS3231 RTC is also supported by this library, including additional funcationality of being able to set the frequency of the square wave output.
The DS3231 RTC is also supported by this library, including additional functionality of being able to set the frequency of the square wave output.
## Overview
The DS3231M is available as a SO8 or SO16 package and runs on both 3V and 5V systems. It has two alarms and also battery backup circuitry and requires no external crystals/oscillators or capacitors to run.
