Arduino Nano DS3231 problems

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i have arduino nano , ds3231 rtc module, connected requested, a4 sda, , a5 scl, 5v supply , gnd.
i have tested every possible rtc library, not work.
i2c scanner finds eeprom on 0x57 address, not rtc clock on 0x68.
maybe nano not support chip, ds1307 only?
please anybody.
thank in advance.

quote
maybe nano not support chip, ds1307 only?
no, can use ds3231 nano.

quote
i2c scanner finds eeprom on 0x57 address, not rtc clock on 0x68.
until scanner can find 0x68 can no further.  fact scanner finds eeprom indicates have connected sda/scl of module correctly nano. it's have kind of hardware problem on module or defective/counterfeit ds3231.

find schematic module.

determine if there continuity between sda/scl pins on chip , pins connecting module arduino. determine if power , gnd pins on chip indeed connected power , ground.



Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Arduino Nano DS3231 problems


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