err

自制红外线自动门控制器电路,市场上成品的自动门控制及执行机构价格普遍偏高，文中介绍的方法适合家庭自制使用，用到的元器件都很容易找到，有兴趣者不仿一试。-Self-made infrared automatic door controller circuit, the market finished the automatic door control and enforcement agencies generally high prices, the introduction of the method is suitable for home use, the components used are very easy to find, do not have interest in like a try.

本程序使用P89V51单片机利用起PCA功能对脉冲宽度可调，实现两路输出，加LED显示和按键功能，详细请看程序注释，编程风格自认可以-This procedure since the use of PCA use P89V51 Singlechip feature adjustable pulse width to achieve two-way output, plus LED display and button functions, see the detailed program notes, programming styles can themselves

用protues简单制作的4X4键盘,有图和原程序,可实现按下键显示对应的数值-Protues produced using a simple 4X4 keyboard, there are maps and the original procedure, can be pressed to display the corresponding numerical

本文件中包括了几乎所有的常见封装尺寸，对PCB制作很有帮助-this document, including almost all of the common package size, the PCB production helpful

矩阵键盘检测,用于熟悉了解单片机,初次上手的人用-Matrix keyboard detection, for familiarity with the microcontroller, the initial-to-use with

移植好的系统，通过调试－－－－给需要者-Transplantation good system, through the debugger to those who need it----

Silicon IDE的用户手册,方便调试C51的单片机-User Manual of Silicon IDE,designed for C51 MCU

MSP430 串口通讯 利用查询实现，经运行通过-MSP430 serial communication using Query, running through

Bit Handling Library for AVR PRO Compiler

通过C语言控制数码管动态扫描显示，通过按钮可以控制数码管的大小，然后进行定时器中断进行倒计时。-Through the C language to control the digital control of dynamic scan showed that the adoption of digital control button can control the size, and then proceed to the countdown timer interrupt.