SLE442duxie

MSP430单片机的节点液位与电量程序，利用超声波测量液位。(Based on MSP430 ,measure the liquid level.)

说明：  基于单片机的电阻测量系统，带vb上位机控制和显示同时还有无线发射(MCU-based resistance measurement system with vb PC control and display as well as a wireless transmitter)

桌面监视器,带键盘监视功能 可用于关闭一些广告窗口或不希望出现的任意窗口,键盘监视功能带回放器,可播放鼠标键盘的操作过程(desktop monitor, with the keyboard function can be used to monitor the closure of some advertising window or do not want to see is the arbitrary window, Keyboard surveillance function with playback device that can broadcast mouse keyboard operation process)

时钟程序的编写 这是基于89系列 适用于初学者(clock based on 89C51 you can make a clock by yourself if you want )

电子密码锁设计，实现四位密码开锁，可改密码(Electronic password lock design to achieve four bit password lock, password can be changed)

中英文电子词典，可以联网和在线进行翻译。(English electronic dictionary, can be networked and online.)

用于模块化多电平逆变器最低电平调制程序,很好的控制方法(Minimum level modulation program for modular multilevel inverters)

交流电动机的矢量控制（Transvector Contrl）理论，从理论上解决了交流电动机转矩的高性能控制问题。其基本思想是在普通的三相交流电动机上设法模拟直流电动机转矩控制的规律，在磁场定向坐标上，将电流矢量分解成产生磁通的励磁电流分量 和产生转矩的转矩电流分量 ，并使两分量互相垂直，彼此独立，然后分别进行调节。这样，交流电动机的转矩控制，从原理和特性上就与直流电动机相似了。因此，矢量控制的关键仍是对电流矢量的幅值和空间位置的控制。(AC motor vector control (Transvector Contrl) theory, control theory to solve the problem of high-performance AC motor torque. The basic idea is to try to simulate the DC motor torque control law in the ordinary three-phase AC electric motor in field-oriented coordinates, the current vector decomposed to produce the excitation current component of the magnetic flux generating a torque current component and torque, and two components perpendicular to each other, independently of each other, and then were adjusted. Thus, AC motor torque control, the principle and characteristics of the DC motor on and similar. Therefore, the key vector control is still the amplitude and spatial position of the current vector control.)

带参数存储的整点报时音乐电脑时钟，算是一个比较适合初学者一个小系统。有一定的参考价值。(With parameters stored in the computer clock chime music, be a more suitable for beginners a small system. Have a certain reference value.)

pt100高精度测量电路，精度误差小，速度快，arm9 c51均可实现 ，仅供学习 参考(PT100 high precision measurement circuit, precision error is small, fast, C51 ARM9 can be achieved, only for learning reference )