[日期：2005

ds12c87读写程序，经过测试是可以用的。-ds12c87 literacy procedures, the test can be used.

基于51系列单片机的DS18B20测量温度系统. 正在学习单片机-MCU DS18B20 temperature measurement system. SCM is learning

二相步进电机驱动程序-two-phase stepper motor driver

适用于51单片机的万年历算法.rar-applied to the MCU 51 calendar algorithm. Rar

十分详尽的串口调试程序，未经测试，不过已通过仿真-Very detailed serial debugger, without testing, but had passed through Simulation

用来控制无线数传电台收发信息，用于工业控制领域的远程通信-used to control wireless data transmission radio transceiver information to be used for industrial control areas of remote communication

PM50语音芯片播放语音程序,采用串行方式,AVR单片机控制-PM50 voice chip-play voice procedures, using serial, AVR control

会议计时器，以MCS51单片机为核心，实现会议演讲定时提醒功能，可以进行设定时间，倒计时，暂停，蜂鸣器提醒或灯光提醒等功能-Session timer to MCS51 single-chip microcomputer as the core, the realization of the meeting from time to time to remind the function of speech, you can set time, the countdown, suspension, or a buzzer to remind lighting functions to remind

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

用于分析各种点阵字库结构和程序，对嵌入式或单片机开发很有帮助。-Font used to analyze the various lattice structures and procedures to develop single-chip embedded or helpful.