Has anyone try to emulate SD card with arduino?..In these days everyone have GPS , I have several with satelite receving truble..But LCD is ok,idea is to put GPS in picture mode gps device read from SD card what we emulate with arduino....So if enyone see logic in my question then we maybe have one more solution for big RGB lcd...Sorry, my know...unerstand me...THNX. Yours very respectfully.

You want to emulate an SD Card? Or just re-use a GPS device’s screen?

Those things usually have pretty complex full-colour screens, I think you’ll find it tricky to interface with.

As for pretending to be an SD card, that sounds like it could be a bit difficult too.