Pic16c745, very simple to implement USB, there is a demo app avail from Microchip which make your mouse run in circles. Only needs a crystal, few caps and a few resistors to be up and running. regards Lee McLaren -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of D. Jay Newman Sent: Sunday, 25 January 2004 3:37 AM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [OT:] General Purpose USB I/O > Is there any general purpose I/O board that connects to the USB port? I am > looking for an easy and safe way to add I/O to a PC without tying up > parallel or serial ports. You could use a Pico Servio with a USB<->Serial cable. -- D. Jay Newman ! jay@sprucegrove.com ! Xander: Giles, don't make cave-slayer unhappy. http://enerd.ws/robots/ ! -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu