电路仿真软件，proteus和ｋｅｉｌ混合使用可以完成电路设计的大部分工作-Circuit simulation software, proteus and keil mixed circuit design can be done most of the work

单片机应用的实际例子，用于单片机学习之用，可以再proteus中进行单片机电路的设计-MCU application design practical examples for single-chip learning, can be carried out proteus microcontroller circuit