单片机在循环显示数字列的同时，采用查询方式控制数字的显示时间和音乐播放的开关。音乐低频信号由定时器采用中断方式产生。...

AVR 单片机入门必读文档，内容精要，图文解说。-AVR single-chip entry-must-read document, the contents of the essence, graphic explanations.

红绿灯模拟C程序，用于51单片机，用keil编译，适合二次开发。-Traffic simulation program for C compiler, 51 SCM keil, suitable for secondary development.

文介绍一种用单片机普通I/O 口实现串行通信的方法，可在单片机的最小应用系统中实现与两个以上串行接口设备的多机通信。附有电路图和源代码。-text introduces a microcontroller I/O port serial communications, in the smallest single-chip microcomputer application system to achieve more with two serial interfaces of multi-machine communication. With circuit and the source code.

本文作者采用AT89C2051单片机和温度传感器DS18B20从硬件和软件两方面介绍了一款简易数字温度计的设计过程，  并对硬件原理图和程序流程图作了简洁的描述。数字温度计与传统的温度计相比，具有读数方便，测温范围广，测温准确，其输出温度采用数字显示，主要用于对测温比较准确的场所。-The author of this article using AT89C2051 MCU and temperature sensor DS18B20 from both hardware and software, introduced a simple digital thermometer of the design process, and schematic diagram of hardware and procedures were concise description of flow chart. Digital thermometer with a traditional thermometer, compared with a reading of convenience, a wide range of temperature measurement, temperature measurement accuracy, the output of the temperature digital display, mainly used for more accurate temperature measurement sites.

程序的地址译码，单片机系统中做为外扩接口的地址译码。-Procedures address decoder, microcontroller system as a foreign expansion of the address decoder interface.

SD卡的简单介绍，包括SD卡的分类，协议，脚位定义等。-SD card, a brief introduction, including the SD card classification, protocol, pin definitions.

i2c程序，可以直接调用，用51单片机开发。-i2c procedures can be called directly, with 51 MCU Development.

在lpc2114 上的ADS例子，是学习GUI 的好例子，上面还附带有protues仿真的工程-ADS in the lpc2114 example is a good example of learning GUI, the above also comes with protues simulation project

工业开关量检测模块的原代码,带断线检测功能-Industrial switch module testing the original code, with disconnection detection

该源代码运行于89c51系列单片机上,可从输入FLEX二进制码流中解交织,处理CRC纠错,并最终解码出有效ASCII码数据.-the source code running on 89c51 MCU, FLEX can be imported from binary code stream deinterleave handling of CRC error correction. and finally decoding of effective ASCII data.