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虚拟串口，在Proteus中可用实际串口与其通信(Virtual serial port, available at Proteus its actual serial communication)

本报告介绍了基于AT89S52单片机为核心的、以AD0809数模转换芯片采样、以1602液晶屏显示的具有电压测量功能的具有一定精度的数字电压表。在实现基础功能要求之上扩展了串口通讯、时钟功能、高压报警、短路测试、电阻测量、交流电压峰峰值和周期测试等功能，使系统达到了良好的设计效果和要求。( This report describes on AT89S52 microcontroller as the core, to AD0809 DAC chip sampling, digital voltmeter with a certain precision voltage measurement function has LCD display with 1602. On the basis of the functional requirements to achieve extended serial communication, clock function, high pressure alarm, short circuit testing, resistance measurement, AC voltage peak value and cycle testing and other functions, allowing the system to achieve a good performance and design requirements. )

飞思卡尔小型发动机EMS源代码，用于写入发动机ECU，控制发动机供油量，进而控制转速(code of ecu which can help up control the fuel of the engine)

ZigBee联网，多传感器数据无线采集,CC2530,协调器使用串口将数据传回上位机显示(ZigBee networking, wireless multi-sensor data acquisition)

STM32F4 DHT11 驱动程序，使用与DHT11 以及DHT22 温湿度传感器！(STM32F4 DHT11 drive!)

很不错的 uC/OS2 51单片机串口通讯(uC/OS2 51 microcontroller serial communications)

说明：  适用MINI板的基础例程 STM32奋斗板SD卡文件系统例程(Basic routines applicable to MINI boards)

把各个目录下的所有readme.txt 文件合成一个DirReadme.txt文件。主要用于代码说明文档合并(no english)

十五路输入对输出一对一按一下自锁再按一下解锁控制程序(Fifteen input to output one on one press self-locking press again to unlock control program)

模拟电梯控制系统程序设计代码，用户可输入任意楼层，程序有先来先服务策略和顺便服务策略。(Elevator control system design simulation program code, the user can enter any floor, the program has first come first serve policy and the way services strategy.)