![]() This work presents students, lectures, researchers, industrialists, etc. The computer is used to generate control signals to switch ON or OFF some LEDs. A USB test device was built as well as its windows based test application. This paper focuses on practical USB interfacing using PIC18F4550 as the microcontroller for the device mikroC as the C language development environment for the PIC18F4550 and visual basic (VB9) in developing the windows based application. This is even more challenging for developing countries where projects of this kind would require importing some advance components (development boards) at extra expenses. no longer come with the serial or parallel port hence project development using these computers becomes a challenge to the project developer whose interface knowledge is limited to the serial or parallel port. For instance, mobile PCs such as the laptops, mini-laptops, etc. However, the modern trend utilizesthe USB in interfacing with the computer system. Traditional computer interfacings (for robot control, measurements, reading and logging data, etc.) have been mostly achieved through the serial port or parallel port. ![]()
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