I am creating a custom library for my mp3 stereo project and would like to know how an Arduino send mp3 files to a DF player mini. What function would be used to send a song through to the DF player mini?
There's no provision that I'm aware of for anything to be able to "send" MP3 files to a DFPlayer Mini. You load the files up externally onto a uSD card or thumb drive that you then connect to the player and it plays them as instructed.
Oh I see. What function would be used to tell the sd to share the song with the speaker?
Try starting with:
ok, thanks
You can use the DFPlayerMini in "I/O" (standalone) mode. Connect power to VCC, ground to ground, a 3W speaker to SPKR+/SPKR-, then put a jumper wire on ground pin and touch IO_2 for next file, or ground IO_1 for previous file.
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