128X64显示屏的源代码，不知道有没有用

半导体特性、微电子学习的很好入门教程、提供给需要的人-no

电子秒表的设计 1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。 2、有关系统定时方法： PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号, 频率：f=1.1931816MHz。 定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。 输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断-Electronic stopwatch design one, using the system timer 8253 provides 55ms timing units, design stopwatch timing procedures. 2, the system timing method: PC system timer 0 of 8253 working in the way of 3, to provide an external clock as the CLK signal, the frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption

胎压检测系统接收部分源码-tire pressure detection system to receive some source

是一个简易的密码锁代码，有基本的密码验证，密码修改等等功能！希望可以帮助有需要的朋友们-Is a simple password lock code, has the basic password authentication, password modification and so on! Hope that we can to help those in need of friends

HT1623应用文档，LCD解决方案，大家要的赶快下载啊-HT1623 application documents, LCD solutions, we have to get the download ah

显示字符 1602 显示32个字符 语句容易理解-1602 characters display shows 32 characters in easy to understand statements

超声传感器原理图及资料 -Ultrasonic sensor schematics and information

基于at89c51snd1c的硬盘MP3播放器-At89c51snd1c hard drive-based MP3 player

51单片机用来读写优盘的C语言写的源程序，里面不仅包括源程序还有易懂的原理图分析，适合于入门级开发人员-51 Single-chip USB flash drives used to read and write the source code written in C language, which includes not only the source code there is easy to understand schematic diagram analysis, suitable for entry-level developers.

显示驱动芯片HT1621的C51底层程序-display driver chip HT1621 the bottom procedures C51