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学生成绩管理系统附带数据库操作 完成成绩的增删改查以及不同用户的权限管理(Student achievement management system comes complete performance of operations CRUD and different user rights management)

关于VC与matlab混合编程的代码，包含众多例子，可以直接使用。(Matlab on the VC and mixed programming code, including many examples can be used directly.)

说明：  STM32F1示波器基于STM32F1的一个简单的示波器，最大支持3.3v的电压，P1口作为输入。(Stm32f1 oscilloscopeA simple oscilloscope based on STM32F, with a maximum voltage of 3.3V and a P1 port as input.)

说明：  What adc measures, you can see that there are good things to share with hh.

randomwalk 2d simulation

2009年全国大学生电子设计大赛A题：光伏并网发电模拟装置 ，实现对光伏并网发电模拟装置的原理和结构进行参数的计算与分析，设计并制作了一个设计并制作一个光伏并网发电模拟装置。本系统以ARM7 LM1138为处理核心能实现了用直流稳压电源和电阻模拟光伏电池，经过SPWM和H桥的DC/AC转换，滤波整流成正弦波后再经变压器逆变从而实现模拟并网，系统具有频率、相位采集跟踪功能和电压电流采集功能。(2009 National Undergraduate Electronic Design Contest A question: grid-connected PV simulator achieve grid-connected PV simulation device parameters of the principles and structure calculation and analysis, design and production of a design and production of a photovoltaic grid simulator. The system ARM7 LM1138 as the processing core can be achieved using DC power supply and resistor simulation photovoltaic cells, after SPWM and the H bridge DC/AC conversion, filtering through the transformer and then rectified into a sine wave inverter in order to achieve simulation of grid , the system has a frequency, phase acquisition and tracking function of voltage and current collection.)

通过打开声卡发声，利用正弦函数或余弦函数等方法产生声音波形文件，并保存成wav文件，可以为大家提供生成声音的方法，在源码基础上修改即可

通过以太网连接三菱M70系列CNC机床 可以读写PLC 内存,上传NC文件,删除NC文件,自动调程式,读取加工数据,及设置刀补信息等,希望大家一起学习进步!

非常好的视频压缩filter,可以实现mpeg2 mpeg1的视频压缩，用户可以自己选择码率(very good video compression filter can achieve mpeg1 mpeg2 video compression, Users can choose Rate)

【实例简介】洗衣机源代码(STM32)