AITRIP DS1302 Clock Module RealTime Clock Module RTC for Arduino AVR ARM

DS1302 Clock Module RealTime Clock Module RTC for Arduino AVR ARM DS1302 contains a realtime clock calendar and 31 bytes of static RAM Via a simple serial interface to communicate with the microcontroller Realtime clock calendar circuit provides seconds minutes hours days weeks months years of information the number of days per month and leap year automatically adjust the number of days Clock operation by AM PM indicator decided to use 24 or 12 hour format.