很好的AT89C2051的中文说明书 费了很大劲才找到的

某公司安装了电子门，要设计门禁系统： 公司的雇员可以凭借密码、胸卡或指纹进入公司 计算机根据雇员的验证方式对其身份进行验证 管理员在监控室可以通过按钮直接开启电子门 访客可以按门铃请求进入，由管理员为其放行 管理员可以为新职员设置密码 -A company to install an electronic gate, to design access control systems: the company" s employees can rely on passwords, badges or finger into the company computer, authentication of the employee to verify their identity can be an administrator in the control room directly through the button to open electronic gates that visitors can rang the doorbell of the request to enter an administrator can be released by the administrator of its staff to set a password for the new

介绍用单片机实现时钟的程序,可共大家学习,交流.-Introduced with MCU clock procedures, a total of U.S. study, the exchange.

公司遥控器IC，类似于51单片机，但功能更强大，然后把其制作成一个解nec码的接受设备，省钱啊！-Company remote control IC, similar to 51 single-chip, but more powerful, and then to make its production into a solution acceptable to nec code equipment, save money ah!

89c51usb仿真器原理图，超级棒，拿出来与大家分享-Schematic 89c51usb emulator, super rod, out to share with you

Keil C51使用详解-Keil C51 uses the detailed solution

利用ＺＬＧ／ＳＤ软件包以及串口间件，数据队列软件包，构造一个ＳＤ／ＭＭＣ卡读卡器．-Use ZLG/SD software packages as well as the serial inter-pieces, data queue package, construction of a SD/MMC card reader.

单片机51控制的红外线遥控小车（原创），使用普通电视机遥控器遥控。含详细DOC说明文件和程序。-infrared remote control car (original), the use of ordinary TV remote control. DOC with detailed documentation and procedures.

DS18B20芯片资料（英文），有需要的朋友请下载！-DS18B20 chip data (English), there is a need to download the Friend!

利用KEIL C51语言编写的T6963C液晶驱动程序,头文件有具体的连接定义和汉字字库,只要硬件连接好,一定可以运行,不象有人纯粹为了下载别人的代码-use KEIL C51 prepared by the T6963C LCD driver, the first document linking specific definition and Chinese character, as long as the hardware connection, and will be able to run, unlike some others simply to download the code

快速傅立叶变换！！完成时域到频域的快速转换！用DSPIC完成-Fast Fourier Transform! ! Completion of time-domain to frequency domain conversion of the fast! Complete with dsPIC