基于AT89C52的单片机4X4键盘原理图，可用于小系统板

自动交通管理系统 用红、绿、黄三支共两组发光二极管表示交通信号灯，利用单片机模拟有时间显示的定时交通信号灯控制管理。信号灯的变化规律可如下： 1）放行线：绿灯亮放行25秒，黄灯亮警告5秒，然后红灯亮禁止。 2）禁止线：红灯亮禁止30秒，然后绿灯亮放行。 3）当某一方向的红灯亮时，若该方向有车通过，则用扬声器声报警。（撞红灯信号可用3-5V模拟量表示） 同时用2位数码管进行30秒钟递减时间显示。-automatic traffic management system using red, green, yellow a total of three light-emitting diodes, said two traffic lights, using SCM time simulation shows the regular traffic signal control. Signal changes in the law to be as follows : 1) Release Line : green clearance 25 seconds, bright yellow warning five seconds, and then the red-ban. 2) prohibit the lines : red-Ban 30 seconds, then green clearance. 3) When the red light in one direction- that if the direction of a car passed, the use of loudspeakers sound alarm. (Red light signals can hit 3- 5V analog said), while using two digital tube for 30 seconds decreasing time displayed.

C51单片机汉字机内码 C51单片机汉字机内码-C51 microcontroller Chinese machine code C 51 microcontroller Chinese machine code

这是一个针对AVR单片机的串口编程，里面有原理图，加上串口源码。针对型号为ATMEGA128的AVR单片机使用。其它的芯片，如果寄存器一样也可套用。-This is a serial port for AVR MCU programming, which has schematic diagram, together with the serial code. ATmega128 model for single-chip using the AVR. Other chips, the same as if the register can also be applied.

基于AVR单片机的串转并大屏幕汉字显示 开发环境 I-Based on the AVR MCU series and big screen to show the development environment of Chinese Characters I

93c46eeprom的中文资料和c51原码-93c46eeprom the Chinese information and source decoder

MCS51控制1602字符型LCD的源代码-MCS51 control 1602 Character LCD source code

电子密码锁，基于51单片机，简单实用，适用于公司，家庭等。-Electronic locks, based on 51 microcontroller, simple and practical, applicable to the company, and family.

三星单片机应用基础资料，简要介绍了三星单片机入门基础知识-Samsung

在单片机开发中比较常用的12864液晶屏源程序，c语言的，具有动态显示的。-e development of the more commonly used in single-chip LCD screen of the 12864 source code, c language, with a dynamic display.

这个是AM51S开发板的专用温度测试程序！-This is a dedicated development board AM51S temperature testing procedures!