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Re^5: Controlling USB on Raspberry Pi

by Bod (Parson)
on Dec 12, 2020 at 12:18 UTC ( [id://11125059]=note: print w/replies, xml ) Need Help??


in reply to Re^4: Controlling USB on Raspberry Pi
in thread Controlling USB on Raspberry Pi

Your fears were correct 😕

The module has arrived with no datasheet...

So next step will be to connect it to the USB port on a laptop and find some software to use the USB and attempt to find what the module needs.

Replies are listed 'Best First'.
Re^6: Controlling USB on Raspberry Pi
by marto (Cardinal) on Dec 12, 2020 at 13:07 UTC

    Have you done anything like this before? It's normal not to get the datasheet delivered with the components. Often they're linked on the sellers product page, or easily locatable using a search engine. Ensuring you know what you're buying, before you buy it is the only sensible way to approach this sort of thing?

      Have you done anything like this before?

      It's a couple of decades since I last had anything to do with electronics and the world has moved on a bit since then!

      Ensuring you know what you're buying, before you buy it is the only sensible way to approach this sort of thing

      Yes - I can see this being problematic...
      I have found a review on Amazon that says it is Plug-and-Play and implies that it 'just works'. Although I have it plugged into a Windows 10 laptop which recognises it correctly but doesn't give me any clues other than it is successfully configured using a generic driver utilising input.inf which is a start but not very helpful.

      I'm beginning to think that the GPIO route is going to be simpler than USB. At least with GPIO, there is a helpful Amazon review that very clearly shows the set up with a picture.

        "I have found a review on Amazon that says it is Plug-and-Play and implies that it 'just works'. Although I have it plugged into a Windows 10 laptop which recognises it correctly but doesn't give me any clues other than it is successfully configured using a generic driver utilising input.inf which is a start but not very helpful."

        Amazon reviews are the most gamed reviews on the planet, and are generally worthless when it comes to anything technical. Plug and Play could mean many things, depending on who is doing what with whatever. I agree with what stevieb has said, this is a lot easier with off the shelf microcontrollers, and you can bet that someone has already done exactly what you want, in a way that is fairly easy to adapt or build upon (like the methods I previously linked to). If you want to jump in and get your hands dirty with rolling your own, this is of course fine, but don't use Amazon reviews as a substitute for actual research, and expect to have to do a lot of that, research.

        I'm beginning to think that the GPIO route is going to be simpler than USB.
        || || || \\// \/

        Alexander

        --
        Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

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