The majority of Arduino Projects I've seen that involve using an SD card use 1 pin for ground and 4 for communicating and 1 for powering(3.3v)(if I'm not mistaken), when you insert said card into an USB adapter and then into the PC it use 1 for ground and 1 for TO and 1 for FROM and 1 to power(5v)(If I'm again, not mistaken)
I wish to attach one female standard USB to an arduino and communicate through that to a micro SD card that sits in an USB adapter. - What obstacles must I overcome?
Background, I shall remove & attach said USB adapter with SD inside of it a lot, taking it out of SD adapter and then into an USB adapter and then back is going to get annoying very fast.
If I'm wrong then please correct me.