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Smart card虚拟读卡器驱动源码，这个很稀少的哦(smart card virtual driver source code.)

modbus 协议，从机模式.工业通讯支持(modbus 协议，从机模式。工业通讯支持)

基于单片机的出租车计价器，其中包括protues图和C++程序(Taxi meter, including protues map and C++ program)

步进电机28BYJ48型四相八拍电机，电压为DC5V—DC12V。当对步进电机施加一系列连续不断的控制脉冲时，它可以连续不断地转动。每一个脉冲信号对应步进电机的某一相或两相绕组的通电状态改变一次，也就对应转子转过一定的角度（一个步距角）。当通电状态的改变完成一个循环时，转子转过一个齿距。四相步进电机可以在不同的通电方式下运行，常见的通电方式有单（单相绕组通电）四拍（A-B-C-D-A。。。），双（双相绕组通电）四拍（AB-BC-CD-DA-AB-。。。），八拍（A-AB-B-BC-C-CD-D-DA-A。。。）(Stepping Motor 28BYJ48 four-phase eight-phase motor, the voltage DC5V-DC12V. When a series of continuous control pulses are applied to the stepper motor, it can be continuously rotated. Each pulse signal corresponds to the stepper motor of a phase or two-phase winding power state change once, also corresponds to the rotor through a certain angle (a step angle). When the change in the power-on state completes one cycle, the rotor turns one pitch. Four-phase stepper motors can be operated in different power-up modes. The common power-up modes are: single-phase winding power (ABCDA ...), double (dual-phase winding)-DA-AB-...), eight beats (A-AB-B-BC-C-CD-)

说明：  使用vb与衡河9140示波器连接，并控制采集一列脉冲数据，对数据进行分析，计算脉宽、积分面积、平均电压，并将波形通过picture控件显示在界面上(Using vb oscilloscope connected with the value for r. 9140, and a pulse control and data acquisition data, analyze data, calculate pulse width, integration area, average voltage, and waveform display in the interface through the picture controls on)

使用C语言代码51单片机的串口仿真实现,意识到C被用来模拟串口的功能 (Using C language code of the serial port of 51 single-chip microcomputer simulation implementation, realized how C was used to simulate the function of the serial port )

超声波模块的使用，包括和单片机通信 可以实现超声波测距(The use of ultrasonic modules, including communication can be achieved and the microcontroller Ultrasonic Ranging)

说明：  51单片机的拼音输入法的程序，用C实现，(51 SCM Pinyin input method to the procedures used to achieve C,)

松下车载碟机的协议代码，用于多种汽车的原车配备机头的扩展协议(Panasonic Car turntables protocol code, the original car used in a variety of vehicles equipped with head of the extended protocol)

这是一份关于MSP430的C程序和课件，虽然不是很全面，但是对于新手还是够用的。(This is a report on the MSP430 C program and courseware, though not very comprehensive, but still enough for the novice.)