Tahometer on at89c52 keil c51 using

AT89C52实现单片机控制GSM模块的短信收发程序源代码。在keil下调试成功，并且在对短信的接受上做了处理，取出了接受短信的内容。-AT89C52 microcontroller to control the GSM module messaging program source code. Debugging in keil, processing and acceptance of the SMS, remove to accept the message content.

流水灯C程序，所用单片机是AT89C52，数据输出口用P0-The water lights C program used microcontroller is used the AT89C52, data output port P0

基于AT89C52单片机的十字路口交通灯控制程序源代码和proteus仿真源文件，采用keil做开发环境-Based on AT89C52 crossroads traffic lights to control the program source code and proteus simulation source files, using keil to do development environment