实现MODBUS RTU的完整代码，做MODBUS RTU网关的很实用。

使用CYAN单片机的ECOG1开发板连接SIM300C的GSM模块开发的短信收发程序.供UART和AT指令编程者参考-using CYAN,sim300c, to send and receive SMS.

移植到51单片机的UIP代码，可以用51实现TCP/IP功能-Transplanted to 51 Singlechip UIP code, can be used 51 achieve TCP/IP functionality

Proteus仿真实例，在Proteus下仿真uart，非常不错，值得下载。-Proteus simulation example, in the Proteus simulation under the uart, very good, it is worth downloading.

pcb布线制板的专业指导书，很多经验性的指导，对想从事pcb制作的人很有帮助-pcb board wiring system for professional guidance, and many empirical guidance on the wish of the people engaged in the production of useful pcb

pci7222单片机的驱动程序 ，欢迎大家来下载。-SCM pci7222 driver, welcomed everyone to download.

GSM通讯的C语言源程序代码，能够实际应用，需用户自行修改-GSM communications C language source code, the practical application can be user modified

此为按键部分的,读取按键值是否有按键判断部分函数-this as part of the button, reading keys value judgment whether some function keys

430所有的演示程序示范，教科书式的编写规范-430 all the demo model, the textbook-style preparation of normative

一个用PIC16F716编写的风力发电机的控制器程序，具有很高的实用价值-PIC16F716 with the preparation of a wind turbine controller procedures, with high practical value

时钟芯片DS1302和在12864lcd上显示当前时间-DS1302 clock chip and display the current time 12864lcd