51单片机控制的键盘程序，简洁。 我上传的程序，请大家尽情享用。 建议大家选中“其他人不需帐号就可自由下载此源码 ”-51microchip control with matrix keyboard

VC/C++源码,其它分类,51单片机,数字钟,闹钟 　　基于C的单片机数字钟程序，其中包含闹铃功能，基于51单片机-Single chip digital clock program, which includes an alarm function, based on MCU 51。-VC/C++ source, other classification, 51 single-chip, digital clock, alarm clock, C-based single-chip di

51单片机各个模块的源码，像蜂鸣器，led，lcd，流水灯，定时器，串口等-51 single source of each module, such as a buzzer, led, lcd, water lights, timers, serial port, etc.

超声波模块us100在51单片机的应用，和超声波模块的51单片机源码(The application of the ultrasonic module US100 in 51 single chip microcomputer and the source code of the 51 single chip of the ultrasonic module)