密码保护安全门使用 8051

该项目名为“microcontrolerbased数字密码锁”已被设计为restrictedareas和银行提供担保。一个微控制器控制的电机通过这门可以打开或关闭。用户通过键盘输入密码。微控制器提供所需的电压对电机在turnsopen门终端，如果用户输入错误的密码提醒安全byringing蜂鸣器。所需的电路和元件，单片机ATmega16为主要部分和作为控制单元。我们对用户友好的接口液晶显示器（jhd162a）通过whichmessages像“解锁”或“密码错误”等可以显示。一个4×3 matrixkeypad接口通过userenters密码。其他成分包括

本文介绍了红外多路遥控系统。红外多路遥控系统可实现16路的红外开关控制。以码分制多通道红外遥控为设计的基本思路。通过键盘及代码生成电路、编码、脉冲调制振荡和红外发射构成红外发射电路。通过红外接收，解码以及由单片机控制的医码控制电路组成红外接收电路。-The passage has introduced the nfrared multichannel system of remote control. The infrared multichannel system of remote control can realize the infrared switch control of 16 roads. With yard divide into system the basic train of thought with much passageway infrared remote control of design. Through keyboard and code generation circuit, coding and pulse modulation vibration with infrared project to form infrared project circuit. Pass infrared take over , decode as well as the medical yard control circuit composition that controled by single flat machine are infrared to take over circuit.

ADC 0808 Interfacing

此代码为市面上流行的DS1302实时钟芯片的驱动-this code for the fashion DS1302 bell-chip drive

应用背景基于ucosiii系统的STM32外部SRAM访问例程，是福安来开发板的经典开发例程关键技术STM32F407ZET外部SRAM访问例程，基于ucosiii系统，移植了ucosiii系统，可以直接拿来改其他应用

OS接口代码,实现OS中间件功能,抽取OS接口,-OS interface code, the realization of OS middleware functions, taken from OS interface ,........

sqlite 嵌入式数据库的源码，很不错的啊！--A good sqlite embedded database.

MIPS Assembly Language Programming

三片CD4094级联驱动LED,Proteus 仿真实现-3 CD4094 cascade-driven LED, Proteus Simulation

at29c040 card 读写程序源码-at29c040 card literacy program source code