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说明：  BC95开发资料，Quectel_BC95_NB-IoT_模块产品规格书，全部代码(BC95 Development Information, Quectel_BC95_NB-IoT_Module Product Specification, All Codes)

采用载波移相技术和PR控制器的STATCOM仿真(Carrier phase shift technique H bridge cascade is simulated by STATCOM PR controller)

基于TM1804和89C51的LED驱动控制程序(led control and driving)

基于STM32f407ZGT6编写的4*4矩阵键盘程序，并通过TFT显示屏显示(4*4 Matrix Keyboard Program Based on STM32f407ZGT6 and Displayed by TFT Display Screen)

电力系统可视化分析程序POWERWORLD(POWERWORLD)

stm8l的ADC采集，DAC输出以及串口通讯(Stm8l ADC acquisition, DAC output and serial communication)

说明：  可使用矩阵键盘输入和修改密码的电子密码锁(Electronic code lock that can input and modify code with matrix keyboard)

数码管GPS显示，在单片机上实现的，可以参考一下(GPS digital tube display, in the realization of single-chip, you can refer to)

这是一个描述步进电机细分算法很好的例子，大家可以下下来看看。(This is a stepper motor subdivision algorithm described a good example, we can look at the next down.)

说明：  I2C_SHT21 温湿度传感器测量 I2C 读取SHT21 温湿度传感器 SHT21驱动库有两种操作模式，适合不同操作 自动转换测量模式： 1：启动任意一个测量指令,例如测量温度执行 measureT(); 2：延时200ms 3：读取测量后的数值, autoMeasure(float * th); 该函数读取测量得出的数据，并根据数据的类型进行转化，再自动启动下一个类型的测量 指定转换测量模式： 1：先启动一次测量,例如测量温度执行 measureT(); 2：延时200ms 3：读取测量后的数值,例如读取温度执行readT();(2C_ SHT21 temperature and humidity sensor measurement I2C read SHT21 temperature and humidity sensor SHT21 driver library has two operation modes, which are suitable for different operations Automatic conversion of measurement mode: 1: Start any measurement command, for example, measure the temperature and execute measure(); 2: Delay 200ms 3: Read the measured value and Automeasure (float * th); This function reads the measured data, converts it according to the data type, and then automatically starts the next type of measurement Specify the conversion measurement mode: 1: Start a measurement first, for example, measure the temperature; 2: Delay 200ms 3: Read the measured value, for example, read the temperature and execute readt();)