Purchased a Gravity: UART MP3 for a robot dog.
Works ok but am having trouble connecting to PC to download new mp3 files.
Did work to download once but can’t repeat it.
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Hey John,
I take it you’re talking about this one?:
As far as I can tell, it should be plug and play. Have you double checked you’re using a data USB cable not a charge/power only USB cable?
Also, someone posted this PDF in the comments on DFRobot’s product page for a.similar module based o the same JQ8400 chip. Looks to be a much better english translation:
https://cdn.instructables.com/ORIG/F6P/W2IY/J48PVN1C/F6PW2IYJ48PVN1C.pdf
Edit: Did some more investigation. It’s originally from here:
https://sparks.gogo.co.nz/assets/_site_/downloads/JQ8400_English.pdf
And here’s the original Chinese datasheet:
Looks like a guy in NZ has spent a fair bit of time investigating this chip:
https://sparks.gogo.co.nz/jq8400/index.html
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Hey Oliver
Yes right player.
Thanks for the clue on the cable tried a number of cables and
quite a few are power only, found a good one and now works ok.
I have seen this before and forgot all about it.
Cheers John
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