设计了一个串口通讯的单片机数据采集模块，文中详细阐述了模块的电路原理和程序设计。
Design a data collection module with serial port based on microcontroller. The thesis explains the circuit principle and program designing in detail.
介绍了串口编程技术，RS485总线驱动模式和RS485串口驱动程序。 然后在此基础上设计和实现了SDM300远程控制模块和异步信道的通信模块。
Findally, we implement SDM300 remote control module and Async communication module on the basis of introducing technology of serial programming , RS485 bus driving mode and RS485 serial driver.
该方案避免了普通方案中复杂的软硬件设计，利用专用模块和简单程序设计完成串口和网络之间的数据交换。
The exchange of data between series port and network is realized by special module and simple program design instead of complicated software and hardware design in other methods.
程序模块主要有：系统管理程序，人机界面交互接口程序，模糊算法程序，PID算法程序和串口通信程序等。
There are system administrative program, man-machine interface program, fuzzy algorithm program, PID algorithm program and communication program etc.
程序模块主要有：系统管理程序，人机界面交互接口程序，模糊算法程序，PID算法程序和串口通信程序等。
There are system administrative program, man-machine interface program, fuzzy algorithm program, PID algorithm program and communication program etc.
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