该程序是一个基于pic18F4550的HID设计的程序，并且编写了相应的与上位机通讯的VB程序，全部程序经过了调试。-The program is a design based on the HID of pic18F4550 procedures and with the preparation of the corresponding VB PC communications procedures, all procedures have been debugging.

PIC18f4550做的HID设备，下位机源码，附VB上位机程序-PIC18f4550 do HID device, the next crew source, with a host computer program VB

用18F4550做的一个HID应用系统 实现功能：就是控制一个LED灯的亮与灭！ 源程序如下： 下位机：MCC18+USB 上位机：VB+USB-Do a HID with 18F4550 application functions: one is to control the bright LED lights on and off! Source as follows: lower machine: MCC18+USB PC: VB+USB