I need to convert a 3.5mm aux input to USB, but it also needs to work as a flash drive. What are my possibilities, is there anything like that available for sale or do I need to make a custom PCB? I'm a total beginner in this matter and do not know where else to ask. Any help would be appreciated.

  • this should help: google.com/… – Jay T. Mar 8 '16 at 12:15
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    What do you mean - you have a 3.5mm jack you want to plug in via USB, or you have a 3.5mm socket that you want to use as a USB port? – Paul Mar 8 '16 at 12:17

What you want are three devices:

  • A sampler or an audio card with a line-in (USB based)
  • An USB pen drive
  • An USB hub

I see no technical reason why you cannot build all three devices on a single PCB, but unless you are building many of them it might be cheaper to just pick a box and buy those three components.

  • I never thought of using a USB hub and converting those 2 basically into a single USB input. That's actually quite clever, thanks for the quick answer. – Martin K Mar 8 '16 at 12:32

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