Keil C51 总线外设操作问题的深入分析-Keil C51 bus peripherals-depth analysis of the operational problems

关于百货供应链的设计方案，电子商务方面，包括了最全的内容-department store on the supply chain design, e-commerce, including most of the contents of the entire

algoritnno dbscan basado en densidad para agrupamiento de datos

根据设定好的密码，采用二个按键实现密码的输入功能，当密码输入正确之后，锁就打开，如果输入的三次的密码不正确，就锁定按键3秒钟，同时发现报警声，直到没有按键按下3种后，才打开按键锁定功能；否则在3秒钟内仍有按键按下，就重新锁定按键3秒时间并报警。-err

全球各大机器人实验室及机器人相关网站汇总-The address and web site of various robot labs around the world~

教师工作量计算的源码-teacher workload calculated FOSS

用jbuilder开发的在线书店源码.前台用户页面的功能:注册,浏览,下订单,取消订单等.后台管理员的功能:更新图书库,处理订单,添加或注销用户.- On-line bookstore source code develops which with jbuilder Onstage user page function: The registration, the browsing, gets down the order form, the cancel order and so on Backstage manager s function: The renewal chart book stacks, the processing order form, the increase or cancels the user

Here is a simple circuit for monitoring the fuel level in vehicles. It gives an audiovisual indication when the fuel level drops alarmingly below the reserve level, helping you to avoid running out of petrol on the way.

微机报告 直流电动机斩波调速控制 以8088cpu为核心，扩展8253定时器/计数器，产生1ms（PWM的周期的方波），作为8259的IRQ7的中断请求信号，在中断程序中，由8255B口（PB0脚）输出PWM脉冲，经驱动单元输出驱动直流电动机（起码有高、中、低三个速度，甚至可连续调速）。-c++

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