Electronic Energy Meter Design related, reference circuit good article

基于uml的图书馆系统的建模设计，其中包含有用retional rose做的齐全的各类图，如用例图，类图，顺序图，协作图等等，希望对你有所帮助-UML-based modeling of the library system design, which contains useful retional rose to do the full range of various types of maps, such as use case diagram, class diagram, sequence diagram, collaboration diagram and so on, I hope for your help

基于VB实现PC机与单片机的串行通讯 随着计算机技术尤其是单片微型机技术的发展，人们已越来越多地采用单片机来对一些工业控制系统中如温度、流量和压力等参数进行检测和控制。PC机具有强大的监控和管理功能，而单片机则具有快速及灵活的控制特点，通过PC机的RS-232串行接口与外部设备进行通信，是许多测控系 -VB to achieve PC-based single-chip serial communication with computer technology, especially with the single-chip microcomputer technology, more and more people have to use single-chip industrial control systems such as temperature, flow and pressure detection and control parameters. PC machine with powerful monitoring and management functions, and single-chip microcomputer has a fast and flexible control features, the adoption of PC-RS-232 serial interface for communication with external devices, monitoring and control of many Department of

TARGET MCU:LPC2220（基于ARM7TDMI-S的高性能32位RISC微控制器，具有64KB RAM的Thumb扩展）

数据库设计示例,供学习使用 (SQL Server数据库设计示例,供学习使用) -database design examples for learning (SQL Server database design examples for learning to use)

ModScan and ModSim test Modbus Protocol

Get more out of your legacy systems: more performance, functionality, reliability, and manageability Is your code easy to change? Can you get nearly instantaneous feedback when you do change it? Do you understand it? If the answer to any of these questions is no, you have legacy code, and it is draining time and money away from your development efforts.

笔记本数字小键盘在方向键状态下输入数字,方便财务人员经常输入数字,不用切换usb小键盘的数字和方向键状态-The number of small notebook keyboard arrow keys to enter the number of state

最近看了一些包括Rational Rose 2003 在内的些书，感觉中文的UML还是较少，无奈本人只有四个级看不大懂。这本是电子工业的PDF中文的UML入门级书。-recently read some, including Rational Rose 2003 of these, the feeling of the Chinese UML or less, unfortunately I only see four little-understood. This is the electronics industry"s PDF Chinese UML entry-level book.

c++Builder与Matlab混合编程.-c Builder and Matlab programming.

altium designer教程，由哈工大录制的，可以帮助学习pcb制图-altium designer tutorials, recorded from the Harbin Institute of Technology can help to learn pcb Mapping