A buzzer is triggerd once every hour when a interrupt is received from the Square wave output pin of the DS3231 RTC. The Arduino stays in low power mode when idle.
The following Libraries are required:
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Demonstration of Dallas Semiconductor DS3231 real time clock functions such as alarm, Interrupt pin etc.
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shreyask21/RTC_Hourly_Chime
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Demonstration of Dallas Semiconductor DS3231 real time clock functions such as alarm, Interrupt pin etc.
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