sdcard

Hi guys, I have a simple problem, I need to mount 2 storage media i.e., USB drive and SD Card that are connected to my system and copy a csv file from SD card to USB in the most fastest way possible (DMA may be?) but my current method is kinda very slow. I am mounting SD Card, reading a 256kb...

I'm using a microcontroller (Arduino) to collect sensor data and saving it in .txt format in the interfaced SD card. I would like to access this data remotely through web (WAN). Please advise on how to do this and what kind of setup will be needed? Please share links of similar projects or...

Hi, I have a product idea and wanted to know if its possible to build a SD card reader with 5-10 slots?