By serial single

基于51系列单片机的一个移位显示矩阵键盘源码-51 Series single-chip based on a matrix keyboard Shift show source

江苏电能表通信协议，适用于国网最新645-2007的规约-Jiangsu power meter communication protocol, applicable to the statute of State Grid latest 645-2007

实时时钟芯片DS1302采用串行接口，只需3根引脚便可以完成操作，其使用非常方便。这里采用AT89S52单片机作为外部微处理器，来对DS1302进行控制-Real-time clock chip DS1302 serial interface, only three pins will be able to complete the operation, its use very convenient. AT89S52 microcontroller used here as an external microprocessor to control of the DS1302

51单片机，利用扬声器产生救护车声音的效果。-51 Single-chip, using loudspeakers produce sound effects of the ambulance.

这是用来分析HHT的程序，极好。 gooo ooo ood-This is the procedure used to analyze HHT, excellent. gooo ooo ood

单片机音乐 用于播放简单的音乐 实现音乐盒功能-Singlechip music used to play simple music box music to achieve functional

it can help you find how to find the soal

关于电路设计的几点经验，从原理设计到实际应用，对一些个问题、经验综述-Points on the circuit design experience, from design to practical application of the principle of some question, synthesis of lessons learned

FM25040的C51驱动程序，用于掉电保存数据。-FM25040 the C51 driver, save the data for the brown-out.

电喷摩托车发动机的燃烧优化研究以及自主研发的测试标定系统-EFI Motorcycle Engine Optimization combustion research, as well as independent research and development test calibration system