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桌面监视器,带键盘监视功能 可用于关闭一些广告窗口或不希望出现的任意窗口,键盘监视功能带回放器,可播放鼠标键盘的操作过程(desktop monitor, with the keyboard function can be used to monitor the closure of some advertising window or do not want to see is the arbitrary window, Keyboard surveillance function with playback device that can broadcast mouse keyboard operation process)

全自动可遥控旗帜升降系统以AVR单片机为核心，由PWM对电机进行变频调速，高精度光电编码器测速，闭环式电路控制。能够利用按键输入相应的指令控制旗帜的升降，还可以实现在特定位置停留的功能。利用LCD可以显示旗帜的实时高度和相应的控制命令，用LED指示旗帜是否处于半旗状态，具有语音提示报警功能，并可利用无线模块实现遥控功能，准确均匀地实现旗帜的升降(Automatic landing system can be remote-controlled flag to AVR microcontroller core of the PWM VVVF motor, high-precision optical encoder gun, closed-loop control circuit. Enter the appropriate button to take advantage of the command control of the rise and fall of the flag, but also can stay in the function of a specific location. LCD can display the banner of the use of real-time high and the corresponding control command, the LED is directed at the flag half-mast, and alarm functions with voice prompts, and the use of wireless remote control function module, to achieve uniform and accurate take-off and landing flag)

SIM800C升级工具,二次开发工具，省成本的特别好用用的方案(SIM800C upgrade tool)

jm20316移动硬盘盒---原理图，PCB板图。非常好用的资料(jm20316 HDD Enclosure--- schematics, PCB board map. Very useful information)

51单片机控制智能小车循迹小车c源程序5路循迹(51 MCU control smart car)

motor_control_library_v0_10.zip park SVPWM(motor_control_library_v0_10.zip park SVPWM)

2.4G研发详细文档，对没有无线基础的同学非常有帮助！(2.4G development with the document, very helpful to students based on no wireless! )

stc51单片机上对04-多路ADC转换-BandGap-模拟串口发送例程(Stc51 microcontroller on the 04- multi-channel ADC conversion, -BandGap- analog serial port to send routines)

类似IE和WordPad的工具条，还有两个极像IE和Wordpad的例子(The toolbar which likes IE and WordPad, and two examples which like IE and Wordpad)

本程序利用特征线法计算管道水击的压力和流量(The program uses the method of characteristics to calculate the value of the pipeline water hammer pressure and flow values.)