取消工程密码专用6.51

用STM32F101或者STM32F103单片机，对华为GPRS模块MG323或其他兼容模块进行设置，实现远程数据的传送，源码经过测试可行，用户应将 IP：PORT 填完整(Use STM32F101 or STM32F103 microcontroller, huawei GPRS module MG323 or other compatible module Settings, realize remote data transmission, source tested feasible, users should be fill full IP: PORT )

EM78P468单片机的参考代码，C语言编写，还有详细的代码说明(EM78P468 Singlechip reference code, C language, as well as a detailed description of the code)

利用电能芯片CS5460实现手持式三相电能表(Use of power to achieve chip CS5460 handheld three-phase power meter)

KS0108驱动12864字符型液晶程序(KS0108 LCD driver 12864 Character program)

BH1750光强传感器测光控制，TIP-Camera-CGI(BH1750 light intensity sensor metering control, TIP-Camera-CGI)

基于STM32F4的示波器的源代码，内部含有ucos-ii操作系统。(STM32F4 based oscilloscope source code contains an internal ucos-ii operating system.)

MQ137资料，包括特点、适用环境、测试电路(mq137)

使用FFMPEG库进行视频解码，然后在一个Static控件上使用SDL2.0进行视频显示，相比SDL1.0,2.0版本支持多窗口同时显示，性能也大幅提升。（demo中未处理音频帧）。本Demo优点：将视频解码和显示分别封装了两个类CFfmpegDecod和CSdlShow，便于学习和理解播放流程。适合学习者使用。(Using the FFMPEG library for video decoding, and then on a Static control on the use of SDL2.0 video display, compared to the SDL1.0,2.0 version supports multi window at the same time, performance is also greatly improved. (demo is not processed for audio frames). The Demo advantages: the video decoding and display are encapsulated in two classes CFfmpegDecod and CSdlShow, easy to learn and understand the playback process. Suitable for learners to use.)

方向传感器ＭＭＡ7455　在ＧＢ60　上的应用程序(Ｃ51编写）(MMA7455 orientation sensor on the test procedures in GB60 (C51))

按键控制8×8LED点阵屏显示图形,proteus仿真(Button control 8 × 8LED dot matrix screen display graphics)