用AVR单片机和MP3解码芯片VS1003以SD卡为存储介质完成的MP3播放器相关资料-a MP3 based on AVR mcu and VS1003 and with storage of SD card.

1x RFID-RC522 module 1x standard S50 blank card 1x S50 special-shaped card a (as shown by the key ring shape) 1x straight, curved rows of pin of the article