Used in a passenger transport system LED screen

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

这是热电阻测温的程序，可以测量工业环境周围的温度-This is the thermal resistance measurement procedure, can measure the temperature of the surrounding industrial environment

8051单片机点对多机通讯，希望对大家又所帮助，我也需要下载资料啊！-8051 points on the multi-machine communications, and they hope to also help everyone, I also need to download the information ah!

M16内部采样并用Max7221-7219显示-M16 and the internal sampling showed Max7221-7219

单片机协议栈(TCP/IP)-MCU protocol stack (TCP/IP)

桦宣430研讨会资料盘里的430源码资料-Cheng Xuan seminar information set 430 in the 430-source information

P89C668单片机硬件I2C软件包,668i2c.asm（主方式）-P89C668 hardware I2C packages 668i2c.asm (the main form)

小功率LED条形灯的全彩控制含64阶灰度变化，可供学习LED控制的朋友参考。-Low-power LED light bar control with full-color 64-band gray-scale changes, for studying the control of Friend LED reference.

支持键盘双击事件的C程序设计,51实例，验证过的-Double-click the event to support the keyboard C-program design a