Adafruit Datalogger - and RTC

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njmarion
 
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Adafruit Datalogger - and RTC

Post by njmarion »

I just received the Adafruit Datalogger shield. Unfortunately, I also need to use a DS3231 RTC both for stability and the interrupts. There seems to be a conflict between the Datalogger RTC chip and the DS3231. Is there an easy/safe way to disable the RTC? Can I just cut the traces between the SDA/SCL pads and A4/A5? - or will that have some other consequences?

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adafruit_support_mike
 
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Re: Adafruit Datalogger - and RTC

Post by adafruit_support_mike »

Yeah, both chips use the same I2C address.

Cutting the traces is probably the best idea, between the A4/A5 pins and the two holes labeled SDA/SCL. That will leave the pull-up resistors connected to the DS1307's I2C pins, so the chip will see a valid but inactive bus.

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