MP3 Library with M4 Express

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Casey10110
 
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Joined: Tue May 10, 2016 9:48 am

MP3 Library with M4 Express

Post by Casey10110 »

Hi Guys,

I was wondering what the correct wiring is for the Adafruit MP3 library for the Feather M4 Express. The tutorial https://learn.adafruit.com/native-mp3-d ... o/overview mentions the Feather M4 Express but only gives wiring for the teensy. When wired as follows, there is no sound:

https://learn.adafruit.com/adafruit-max ... est#step-4

How is the I2S configured in this library? I don't see any link to the Zero I2S library, which works with the M4 Express.

Another question about the MP3 Library itself: How was the sine.h MP3 header file created? Was LAME or something like that used?

Casey

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adafruit_support_carter
 
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Re: MP3 Library with M4 Express

Post by adafruit_support_carter »

The output is not I2S:
https://learn.adafruit.com/native-mp3-d ... w#todo-1-3
doesn't support I2S
You need to wire to the DAC outputs:
https://learn.adafruit.com/native-mp3-d ... wiring-2-1

On the Feather M4 Express, DAC0 is on A0, DAC1 is on A1:
https://learn.adafruit.com/adafruit-fea ... c-pins-3-6

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