How can one read an sd card from a 5v device?
I have a stack of pro minis for this application, and space (especially width-wise) is at a serious premium. Therefore arduinos that speak both 5&3.3v are not so great, and those ethernet/sd combos are right out. I suppose I could obtain some 3.3v minis but I have other portions of this project that require 5v, so then I would need additional power.
So at this point I think 5v minis are still my best option. I have some logic level converters, so that should not be too hard, but I still need 3.3v to power the sd card right?
I see an adafruit breakout that takes 5v. I suppose that would work, tho I prefer to work with parts I have and not prefab stuff. How is it so small? Am I mistaken bout needing an LM or similar to power the card, and all I need is the little logic level converter?