用keil c和vb开发的单片机通用usb键盘，包含固件源码，驱动，调试程序和原理图。对做相关毕业设计的人很有帮助。-with keil c and vb development of the general-purpose usb keyboard includes firmware source code, drivers, Commissioning procedures and drawings. Make relevant to the graduate design helpful.

我的毕业设计程序，单片机采集数据（温度）经串口发送至电脑VB显示并画出曲线，注释详细，稍加修改即可为你所用，-My graduate design program, microcontroller data acquisition (temperature) to send to the computer via serial port, and draw curve VB show, notes in detail, little changes can work for you, huh,