2812-sch

校内竞赛做了一个PM2.5测量仪，采用pm2.5传感器DSM501A测得PM2.5的浓度并把它转化为脉冲量，通过51单片机检测脉冲量并把它转化为数字量，经过换算，送到LCD1602进行显示。 (School race made ​ ​ a PM2.5 measuring instrument, using pm2.5 sensor DSM501A measured concentrations of PM2.5 and put it into pulses, pulses detected by the microcontroller 51 and convert it to digital, after conversion, send to LCD1602 display.)

官方的卡尔曼滤波算法，二维,角度融合算法(The official Kalman filter, two-dimensional)

说明：  这个是基于合泰BH67F2742的额温枪方案(This is the Ewen gun scheme based on Hetai bh67f2742)

使用led和1602显示时间日期和当前环境温度。温度采集使用开发板载传感器。(Led and display time using the 1602 date and the current ambient temperature. Temperature Acquisition using the development of on-board sensors.)

直流有刷电机驱动程序，基于STM32F4(DC brush Motor Driver code, based on STM32F4)

51单片机电子时钟，含proteus仿真和keil工程源码(51 single-chip electronic clock, including the proteus simulation and keil project source)

对各种PID 控制算法的详细说明描述，并比较各种PID的用法(Detailed description of the PID control algorithm described in age and compare the usage of the PID)

说明：  两路光电开关驱动，2019电赛A组，测试程序(Two-way Photoelectric Switch Drive, Group A of 2019 Electricity Competition, Test Procedure)

stm32 串口 时钟，跑马灯 实验代码 。 包含函数库法和 寄存器两种方法。(stm32 serial clock, marquees experimental code. Kufa and register contains the function in two ways.)

多功能信号发生器，通过计算机声卡输出制定参数的正弦波方波等信号。(Versatile signal generator, developing sine Fang Bo parameters like signal output by the computer sound card.)