I have a little question.
I'm making a simple data logger using the libraries SDFat
(downloaded from http://code.google.com/p/sdfatlib/downloads/detail?name=sdfatlib20111205.zip&can=2&q= ),
using the example called "AnalogLogger".
This sketch works fine for my requests. Unfortunately I collect data for long time, close to week and with high frequency up to 10 sample/min 10HZ, causing really big file after one week, and some problem when try to open with excel.
So, I would that after, for example 20000 millis or after 20000 sample, the system recreate new one logfile...
Anyone know how implement this function in this sketch??