profiling_lab

步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)

单片机播放器，大部分的单片机视频教程均可播放，快快下载，好时机。(MCU PLAYER,VERY GOOD.)

类似IE和WordPad的工具条，还有两个极像IE和Wordpad的例子(The toolbar which likes IE and WordPad, and two examples which like IE and Wordpad)

电话语音管理系统的工程项目代码，需要的请拿去使用吧，任意修改!(Telephony management system project code chunks, arbitrary changes)

模拟BMS，测试充电桩，经测试完好！符合《GB-T 27930-2015 电动汽车非车载传导式充电机与电池管理系统之间的通信协议》，用的USB转CAN外接模块。(Analog BMS, charging pile test, tested good! In line with the communication protocol between the GB-T 27930-2015-board electric vehicle conductive charging unit and battery management system. )

串行da模块的应用，和单片机通信，通过单片机控制da模块(Serial da module application, and single-chip communication, via da MCU control module)

stm32学习 十三：RS485总线的使用 十四：TFT屏的图片，中文和字符显示(stm32 learning 13: RS485 bus use 14: TFT screen pictures, Chinese, and character)

c++程序实现的JPEG图片到RGB565 16位的LCD显示的数据转换程序.(c++ program to achieve the JPEG image to RGB565 16-bit LCD display of the data conversion process. )

简单的音乐盒，可以播放音乐，并且有花样灯进行闪烁，是个不错的小礼物。(music box )

BH1750光强传感器测光控制，TIP-Camera-CGI(BH1750 light intensity sensor metering control, TIP-Camera-CGI)