SwitchForm_用菜单实现视图的切换

能从SD卡读取MP3文件，并且识别后通过LD3320播放MP3，具体使用只需新建一个.ini系统文件存在sd卡，在里面设置好关键词并且所需播放的MP3文件即可(Read MP3 files from the SD card through the LD3320 play MP3 and identify specific use simply create a new the ini system files sd card exists inside set keywords and required to play MP3 files can)

计算太阳位置，通过公式！用单片机编译程序！(Calculate the position of the sun through the formula! Microcontroller compiler!)

用单片机对遥控器实现解码，并在数码管上显示(Infrare Decoder)

简要介绍MicroSD卡和使用方法，希望对各位朋友有帮助(Simply discript how to use MicroSD)

说明：  自动加料机控制系统 以单片机实现 用于毕业设计 (Automatic feeder control system the MCU for graduation design)

一个水轮机调速的控制程序，想从事控制方面程序设计的朋友可以参考一下。(a turbine governor control procedures to control in the design process can make reference to a friend.)

proteus 密匙文件一份，涵盖丰富的驱动器资源(proteus a key document, covering the rich drive resources)

单片机基础资源的所有程序，包括汇编和C语言，非常的实用(All the procedures of the microcontroller basic resources, including assembly and C language, and very practical.)

单片机控制的音乐播放器的proteus仿真以及源程序，导入单片机通过测试过能正常工作，希望对须要的人有所帮助。(Music player SCM proteus simulation and control of the source code, import the microcontroller through tested to work properly, we want to help people who need.)

4维简单胞映射程序: 对动力系统做全局分析(four-dimensional simple cell mapping procedures : dynamic systems analysis of the overall situation so)