基于单片机的音乐炫彩闹钟。word内含原理、电路图、源程序及成品拍照。并附keil编写的C源程序和可以直接烧制用的hex文件。-Microcontroller-based music Colorful alarm clock. word contains principles, schematics, source code, and the finished pictures. Accompanied by keil prepared by the source, and can be dir