I require a product designed to play mp3 files. To program the player a USB stick is attached, the user choses the right song, a RFID tag is placed on a RFID reader and the mp3 is copied to a SD card and an association is made in the system. When all MP3 are configured the system is placed in play mode and a song is triggered when a RFID tag is detected. More details will be supplied at a latter stage.
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hi there i am an electrical engineer. i have experience related to RFID SD card and usb communication. i can design this project for you. let me know if you are interested.
There is an experience of developing an MP3 player using the STM32 controller and mp3 decoding libraries. We can develop a product for you. Terms and cost approximate.