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Topic: Adafruit Data Logger Intermittent (Read 357 times) previous topic - next topic


I created my prototype with the 1st rev of the Adafruit Data Logger, worked like a charm.
I ordered 25 of them of a project, I received Rev B, no big deal right? Different RTC chip so I swapped the RTC_DS1307 rtc;  line to RTC_PCF8523 rtc;  That works.
Any SDcard I use initializes no problem but it cannot open, read or create files.
Strangely, it sometimes works.
I am using fresh out of the box Arduino UNO's, Transcend 2GB cards as well as Acumem HC class 10  4GB cards.

Frustrating as I don't know where the problem is so it's hard to fix.


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