印刷电路板。键盘控制，矩阵键盘电路。

交通灯,可控制行人过马路的时间,有protues图和c语言程序-Traffic lights, pedestrian crossing the road to that time, protues map and c language program

yige jiao tong deng xiao xi tong ,bao kuo c chengxu he dianlutu,yong KEIL he PROTUES dakai.-Small trafficlight system,use KEIL and PROTUES open it.

ARM LPC21XX 产生蜂鸣测试仿真,已经完好,可直接start.-ARM LPC21XX generate beep test

9320 drvice code -9320 drvice code

STC89C58加18B20温度传感器构成的温度采集器程序-18B20 increases STC89C58 temperature sensor consisting of temperature acquisition program

能实现多功能。既可做倒计时秒表,又可进行定时，还可以通过扩展完成其他功能，而且功能的相互转换也十分简单-To achieve multi-functional. Can do the countdown stopwatch, but also to timing, but also by extending the completion of other functions, and inter-conversion functions is also very simple and

实用的空调计费系统，采用51系列单片机，编译软件KEIL C-billing practical air conditioning system that uses 51 series microcontroller, C compiler software KEIL

freescale hc12_C32 例程-Freescale hc12_C32 routines

8051单片机串行读写EEPROM，24C02，本案例采用汇编编写。打包成函数，可直接调用。适合初学者学习。-8051 serial read and write EEPROM, 24C02, compilation of the preparation used in this case. Packaged into a function, can be directly invoked. Suitable for beginners to learn.

基于keil c51的rtos tiny源代码（keil 7.05 version）-based on the Byelorussian tiny decoder source code (c51 7.05 version)