Converting and managing memento on an Arduino mini

hiya, working on a project on Arduino mini that requires the board to be removed from my laptop and collect data (has its own cell) and then once plugged in send data collected back to the laptop. I believe this is to do with converting ram to non volatile memory but am pretty fuzzy on the whole thing, how do I go about doing this?

First, there is no way to doing that.

And second - Arduino mini has only 2Kbytes of RAM so converting it to non volatile memory is pointless.
Where would it be more correct to use some kind of external memory - for example, write data directly to an SD card or to an external EEPROM chip

The Sparkfun OpenLog can record extremely large amounts of data.

thanks very much for the correction, where would I need to start with regards to writing to an EEPROM chip?

What data do you want the 'board' to collect and store while it is away from your laptop?

the board is going inside a sports ball to measure spin

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