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The DS1307 is accessed via the I2C protocol. DS1307 based RTC without LIR2032 battery. Two wire I2C interface. Arduino Module. 1Hz output pin. Hour:Minutes : Seconds AM/PM.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.