I think this may work, but I wanted a second opinion before I go off and buy all of the parts!
I am working on a data logger where it would be useful to use a second SD card (not the OS card) to periodically transfer data to. It will also have a minimal user interface, probably just a simple LCD display and a few buttons.
I want to be able to press a button to trigger a "Download data to SD card" function.
If I mount the reader to the pi, when writing do I address the reader or the card? So will it matter if, due to a misplaced/damaged card, I start using a different SD card?