piny

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-)

Scheduling With Short Term Security Constrained Unit Commitment

pca 用于定时器功能 pca可用于捕捉，定时，pwm输出等功能(pca pca can be used to capture, timing, pwm output for timer function)

在定时器控制下反复的裁减一幅图像和改变其大小(timer under the control of the repeated cuts an image and change its size)

使用DataAdapter对数据库进行操作 将SQL-search.aspx程序可改为使用DataAdapter对数据库进行操作. 程序使用"Dim objAdapt As New OleDbDataAdapter(strcmd,objCon)"创建了DataAdapter对象。(Use DataAdapter to operate the database The SQL-search.aspx program can be changed using the DataAdapter to operate the database. The program uses "Dim objAdapt As New OleDbDataAdapter (strcmd, objCon)" Creating a DataAdapter object. )

说明：  两个12V的电机驱动履带式底盘完成到制定目标运动的任务，可以通过点触屏进行无线控制。(Two 12V motor-driven crawler chassis complete the task of setting the target motion, which can be controlled by wireless touch screen.)

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)

上位机恒压供水控制系统，通过MODBUS网络来控制台达PLC(up computer control PLC delta, this software is vell good control software,)

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)

计算太阳位置，通过公式！用单片机编译程序！(Calculate the position of the sun through the formula! Microcontroller compiler!)