Legend

下位机与上位机通过USB口上传数据，上传的数据包括校验算法(Lower computer and upper computer upload data through USB port, and upload data includes verification algorithm.)

通过文本文档读取矩阵，并存储为二重指针。(Read the matrix and store it as a double pointer.)

使用qt实现网络爬虫，爬取自己感兴趣的图片。原理是采集地址，然后存数据，再去下载。(Use QT to achieve web crawler and crawl pictures that you are interested in. The principle is to collect addresses, then store data, and then download them.)

Linux操作系统下C语言编程入门，Linux 入门， C语言基本编程(Linux operating system under the C language programming entry Linux entry, C language basic programming)

简要介绍MicroSD卡和使用方法，希望对各位朋友有帮助(Simply discript how to use MicroSD)

多媒体的VC++编程，里面有十几个实例，能够在VC++6.0下直接运行，对于初学者 很有帮助(Multimedia VC++ Programming, which has more than a dozen examples, can VC++ 6.0 directly running very helpful for beginners)

nokia3310 and temprature sensor display pic18f2550 picc source code

矩阵类库，包括各种各样的矩阵的运算方法，基本的运算和复杂的运算。(Matrix class library)

用 C++ 编写的 发送 接收串口工其软件，好用，可以参考一下(C++ prepared by the transmission and receiving serial software, good use, you can refer to)

LED显示汉字 彩色音乐频谱 32X64 P4 LED彩色屏 STM32音乐频谱 装饰LED(LED Display Chinese Character Color Music Spectrum 32X64 P4 LED Color Screen STM32 Music Spectrum Decorative LED)