>Are these chips bus powered? Do they provide a means to power your >project from the bus too? Yes, they are powered from the USB bus. It's four wires - two are the bus and then there's +5 and ground. There are companies that sell USB-powered lights for illuminating your laptop keyboard :-) -Bob -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu