Introduction - If you have any usage issues, please Google them yourself
51 single-chip hard disk MP3 player schematics and source code files to increase the USB download function character LCD display features such as sub-folders. And software to do some modifications. And drawing out the hardware circuit. Done hastily because inevitably something wrong with the U.S. understanding, please, please point out the error.谢谢. Supported FAT32, FAT16/12 not to do. Supporting USB download file functionality, speed 300KB/S around (USB1.1). 7.5* 2 character LCD display showing the song name, path name (scroll display) functions support multiple folders. Before and after the selection has to suspend, the software volume, high, middle and bass controls, heavy bass sound functions.