suijishengchengkeli

语音控制密码锁： 功能：(1)、外扩4*4键盘； (2)、能设置和识别密码； (3)、语音提示密码输入正确与否的信息。 (Voice control lock: Functions: (1), external expansion 4* 4 keyboard (2), can set the password and identification (3), or voice prompts to enter the correct password information. )

一个可以生成标准翼型坐标，并对翼型在不同攻角下进行升力系数及阻力系数计算的软件。-Can generate a standard airfoil coordinates, and the airfoil at different angle of attack carried out under the lift coefficient and drag coefficient calculation software.

扫雷游戏先说下原理，原理其实很简单，设法获得“雷区”的数据，然后通过模拟鼠标动作，点击雷区上非地雷的的格子，就搞定了:) 所以技术难点只有三个：获得雷区数据、找到扫雷程序和模拟鼠标动作。 -game

说明：  这是2019年新出的文献，主要是介绍SPSS来实现PCA降维，，并和BP结合，简单方便~(This is new literature published in 2019, which mainly introduces SPSS to realize dimensionality reduction of PCA, and combines it with BP, which is simple and convenient ~)

串口编程工具。虽然不是源码，如果需要进行串口调试的，本工具绝对有用。-Serail programming tools. Though it is not source code, but it is very useful when you are debugging serial port or.

说明：  w5500 module schematic and pcb

说明：  CSS3 3D效果网站导航菜单是一款3D立体效果的纯CSS3网站导航代码。(CSS3 3D effect website navigation menu is a pure CSS3 website navigation code with 3D effect.)

说明：  推挽电路的仿真模型，适合电气专业的本科课程设计和学习所用(Simulation model of push-pull circuit, suitable for undergraduate course design and study in electrical engineering)

working with ELM327 OBDII adapter

一个关于PCI板卡的测试与功能检测的DEMO程序源代码安装版，可以在其中看到一些有用的代码-a PCI card for the functional test and detection of the source code DEMO version of the installation, which can be seen in some useful code