I've thought about interfacing with a usb flash keychain drive for one of my datalogging projects...the advantage there would be no special hardware required to connect to a desktop pc. Regards, Bob > Has anyone ever used the PIC16F877 to control a hard drive directly (ie. > without 8255)? Any comments, suggestions, problems? -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu