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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)

单片机开发使用总结(Summing up the development of the use of single-chip microcomputer)

标准Modus通讯协议和接口定义,公司项目使用中，非常稳定，实用，请有需要朋友下载。(The standard Modus communication protocol and interface definition, project use, very stable, practical, need friends to download.)

高压直流输电模型，二百二十千伏的，有参考价值，做的挺不错(HVDC model, $ 220 kV, a reference value, doing pretty good)

adsl及modem拨号软件 visual basic adsl modem(adsl modem and dial-up software visual basic adsl modem)

在飞思卡尔32位的单片机K60的平台上实现线性CCD采集图像的功能；能够实现自动曝光功能；很好的调节图像；(K60 implemented on Freescale MCU platform 32 linear CCD image acquisition functions able to achieve automatic exposure function well adjust the image )

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.)

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-)

nokia5110源码加仿真测试,初始化液晶，按键测试静态动态显示(nokia5110 source plus simulation test, initialize the LCD, keypad test static dynamic display)

doccument for engineer of electronics