lenovo V22 电路原理图，对笔记本维修及嵌入式硬件设计很有帮助。-lenovo V22 diagram, very useful to the hardware design and repair of the notebook.

针对于普中科技EM3-V22的51源码，C编版。内含源代码以及.hex文件。-just for EM3-V22,include the source file and the .hex file.

普中科技单片机开发试验仪，你值得拥有，想要学好单片机的，肯定离不开这个东西哦。-Cape microcontroller development in science and technology tester, you deserve and want to learn microcontroller, certainly can not do without this thing, oh.