从51单片机到arm的入门教程，以及简单的流水灯测试实验的代码，对于初学者比较有帮助-51 microcontroller arm introductory tutorial, as well as the simple code of the light water testing laboratories, more help for beginners

C利用循环左移函数流水灯源代码，51单片机源码下载。-C by cyclic left shift function light water source code, 51 single-chip source download.

51单片机例程，适用于单片机初学者进行学习从流水灯到电机的操作(51 singlechip routine)