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elpaso / Rtc_Pcf8563

Arduino Pcf8563 RTC library. A fixed/expanded version of the original Rtc_Pcf8563
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Support reading & clearing Volt low bit #7

Closed cevich closed 9 years ago

cevich commented 9 years ago

This is critical for detecting if/when battery-power was interrupted or missing if/when main power fails.