USB Development Board for PIC18F4550
This article shows how to make a low cost USB development board for PIC18F4550 similar to Microchip’s PICDEM USB FS board. The Microchip’s USB stack examples can be compiled and loaded directly without altering the code. Access to each of the 40 pins is provided through female headers so that the connections could be extended to a breadboard easily during prototyping.
The board has got a LM7805 voltage regulator with a polarity protection. This board will be very helpful in prototyping PIC based USB projects.