在C#基础上结合数据库技术开发一个数据库系统，包括密码登录等。源代码开放，方便学习者学习，包括大多数c#控件的使用...

用DBSCAN聚类算法实现的三维点云的聚类(using DBSCAN to realise 3d pointcloud clustering)

0.2通道180°相位差方波，3通道120°相位差方波，4通道90°相位差方波 1.试验平台stm32f103c8t6 2.2通道用定时器3的1、2通道；3通道用定时器3的1、2、3通道；4通道用定时器3的1、2、3、4通道； 3.实现方法，周期和占空比用捕获通道中断反复修改捕获值来实现 4.相位差采用定时器的生效同步规则来实现（下一次更新时间生效）(0.2 channel 180 degree phase difference square wave, 3 channel 120 degree phase difference square wave and 4 channel 90 degree phase difference square wave 1. Test platform stm32f103c8t6 2.2 channels use 1, 2 channels of timer 3; 3 channels use 1, 2, 3 channels of timer 3; 4 channels use 1, 2, 3, 4 channels of timer 3; 3. Realization method, period and duty cycle are realized by repeatedly modifying capture value with capture channel interrupt 4. The phase difference is realized by the effective synchronization rule of the timer (the next update time takes effect))

说明：  利用bp神经网络预测数据规律，但是多输入单输出的算法(Prediction of data laws using bp neural network, but multi-input single-output algorithm)

GigaDevice Semiconductor Inc.GD32F4xxARM® Cortex™-M4 32-bit MCU适用于 GD32F405xx、GD32F407xx、GD32F450xx 系列

c#微信公众号开发之自定义菜单，简单明了，通俗易懂，很值得借鉴。(Custom Menu c# development of micro-channel public number, simple, easy to understand, it is worth learning from.)

用于商业机器人运动控制，主要包含地盘，脸部，肢体等多种外设。用于科技馆，展厅，银行等政府部门。主要用来迎宾，导航导览导购，位置点讲解。具有实现简单，等多种优点。

STM32单片机的PID算法实例，通过PID算法控制STM32的PWM输出，反馈量是PWM低通滤波后得到的AD(STM32 microcontroller PID algorithm instance, through the STM32 PID algorithm to control the PWM output, PWM amount of feedback is obtained after low-pass filter AD)

获取 电脑 CPU 硬盘序列号 网卡MAC 主板 显卡 以及MD5 加密(Access to computer CPU hard drive serial number card MAC motherboard graphics and MD5 encryption)

Computer graphics. Implemented algorithm, "affine transformation and its matrix representation"

说明：  a31任意输入一行字符串判断这个字符串的情况程序简单易懂(a31 arbitrary input line of string to determine the string program easy to understand)