51控制STA013实现MP3音频解码，实现了STA013的初始化、音量调节、静音、音质设置、声道控制。同时包含通过RS232串口控制LCD实现同步显示。代码经...

能够掌握单片机的工作原理，更能了解交通规则，掌握基本知识。-to master the principle, a better understanding of traffic rules and master basic knowledge.

RS485通信的深层细节，逐步深入分解讲解。-RS485 communication

实现STC89LE516AD单片机的A/D转换功能，时钟11.0592M，转换结果以16进制输出到串行口，可用串行口调试程序并观察输出结果，注解非常详细。-Achieve STC89LE516AD MCU A/D conversion clock 11.0592M, conversion results to 16 hexadecimal output to the serial port, serial port can be used to debug programs and observe the output, very detailed comments.

自己改写的单片机pid程序，实用

PDIUSBD12 USB1.1 C51源代码-PDIUSBD12 USB1.1 C51 source code

本人从网上收集的关于Keil-C51的相关教程,对初学者很有帮助-I gathered from the Internet on the Keil-C51 related tutorials, very helpful for beginners

用keil C编写绝对原创 内有proteus的仿真文件。可以实现时间的重设闹钟的设置，到时间后有警告。-Keil C used in the preparation of absolute originality has Proteus simulation file. Can realize the time to reset the alarm clock settings, and has warned that time.

ARM程序，2*2键盘功能，程序可扩展成3*3或4*4的键盘，在LPC2103上测试成功。-ARM procedures, 2* 2 keyboard functions, procedures can be extended into a 3* 3 or 4* 4 keyboard, to test the success of the LPC2103.

1） 以单片机为核心部件组成一个音乐播放器。 2） 利用单片机的定时器产生乐谱的各种频率方波，信号经过放大后由喇叭发出声音。 3） 自行定义按键盘，每按一键，可选择一首歌曲进行演奏，某段音乐令单片机连续播放，演奏可通过按键来中断。 4） 在LCD上显示演奏歌曲的名称。 -1) the composition of the core components of SCM as a music player. 2) the use of MCU timer generated scores of the various frequency square wave signal through the amplified sound from the speakers. 3) self-defined keyboard, every click of a button, select a song to play, a certain period of continuous playback of music in SCM, playing by pressing a button to interrupt. 4) In the LCD displays the name of the song playing.

基于AD89S52的计算器的实现源程序。-Calculator based on the realization of AD89S52 source.