我这是一个1602的液晶程序，是51的很精典的

我这是一个1602的液晶程序，是51的很精典的-I This is a 1602 LCD procedure is very classical 51

键盘扫描程序，逐行拉低，错位相交的方法实现-Keyboard scanner, progressive degrade realize dislocation intersect method

一个简单国外蜘蛛爬虫程序。共享给大家使用，多提宝贵意见。-A simple procedure of foreign spiders reptiles. Shared use of U.S., with more valuable advice.

74HC595程序,C51版的,己调试过-74HC595 procedures, C51 version, others have been debug

5l 系列单片机为许多控制提供了高度灵活和低成本的解决办法。充分利用他的片内资源，即可在较少外围电路的情况下构 成功能完善的超声波测距系统-5l Series single-chip control for a number of highly flexible and cost-effective solution. Make full use of his resources-chip can be less the case of the external circuit constitutes a function of the ultrasonic ranging system to improve

密码锁: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-Password Lock: According to set a good password, the password used to achieve two key input function, when to enter the correct password, the lock will open, if entered incorrect password three times, on the lock button 3 seconds, also found that alarm sound, do not press the button until the three kinds of after the Open button lock function otherwise, there is still a matter of seconds in the 3 button press, on the re-lock button 3 seconds time and alarm

STM32电路图，有原理图和PCB，稍微处理即可直接去制作。-STM32 circuit, there is schematic and PCB, you can go straight to making a little deal.

WAVE6000，南京伟福的最新单片机开发环境-WAVE6000, Nanjing Wei Fu of the latest microcontroller development environment

avr 单片机LED驱动程序源代码c程序设计-Single-chip LED driver avr source code c programming

随着经济的发展和人民生活水平的提高，自动门的应用也越来越广泛，它已经成为宾馆、超市等现代建筑所必备的，是建筑智能化水平的重要指标。自动门控制系统作为自动门系统的控制核心，决定了自动门系统的性能。国外生产的自动门控制系统性能比较优良，但是价格偏高；国内的同类产品虽然价格便宜，但是性能较差，故障率较高。本文研究一种基于AT89C51的自动门控制系统，功能强大，运行可靠，用户操作方便，而且成本适中，在市场上有较强的竞争力-With the economic development and improve the living standards of the people, automatic door applications more and more widely, it has become a hotel, supermarket, etc. necessary for a modern building, is building an important indicator of the level of intelligence. Automatic door automatic door control system as the core control system, determines the performance of automatic door systems. Foreign production of automatic door control system for excellent performance, but the high price While the domestic price of similar products, but poor performance, a higher failure rate. In this paper, AT89C51-based automatic door control system, powerful, reliable operation and user convenience, and the cost of modest, there is strong in the market on the competitiveness of