DS3232RTC is an Arduino library that supports the Maxim Integrated DS3232 and DS3231 Real-Time Clocks. This library is intended to be used with PJRC's Arduino Time library. DS3232RTC also implements ...
Use a cheap RTC to wake up your Arduino in Deep Sleep - 192-DS3231-Wake-Up-Arduino/YouTube Sketch/Arduino_DS3231_Wakeup.cpp at master · RalphBacon/192-DS3231-Wake-Up-Arduino ...