HTML Tutorial. Homemade USB interface board using a PIC. Hello folks, Here's what I've been working on for the last couple of weeks: This is a USB interface board I've built around a PIC 18f4550 microcontroller from Microchip. As many of you probably know, I've used my computer's parallel port to connect many things to my computer. However, most laptops don't have parallel ports these days, so I needed a way to connect things without a parallel port.
This board does exactly that (and actually much, much more). Video. How to Break into a Mac (And Prevent It from Happening to You) - Lifehacker.