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November 2, 2012
about 2 years ago
Well I connected a speaker and power to the board, loaded a converted audio file into a 1GB microSD card from Sandisk, plugged it in and it didn’t work - until I changed the name of the file to 0000.ad4, then it worked fine. Grounding the Play pin played the file and grounding it again stopped the song (didn’t pause it, as advertised) so that grounding it a third time played the song from the beginning. Can anyone verify this?
The chip datatsheet says it also can play 16kHz .way files, but I couldn’t verify this. Anyone been successful playing these files?
Like the fact that there’s a voltage regulator on board (which can take up to 20V max (12V typical)) so I just wired a 4.5V (3 x AA batteries) supply between Vcc and ground - perfect!
And regarding the Mode - unfortunately it’s NOT MP3 mode as stated by other posters, as MP3 Mode allows you to control the volume, which you can’t do. The mode my board was delivered in was Serial mode - hence the two serial inputs.
Still nice piece of kit - glad it worked.
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