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Have a question about CadSoft EAGLE?  Ask our Expert, Jorge!

Jorge_Garcia

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Jorge Garcia

I'm a young engineer with extensive experience working on EAGLE. My interests include Power Supply design and LED solid state lighting, and I'm always impressed by a well designed PCB.

 

 

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  • Dear: Jorge

    I am building a rover with the dagu rover 5 kit and I am trying to build a PCB for it. In order to build a PCB for it the PCB needs a USB. I am using USB 1-1734028-1 and I can't figure out what CASE pin does. I know CASE stands for Computer Aided Software Engineering but I have no idea what to do with that pin in the USB can anybody help me?

    image

  • in reply to nschreiber0813

    On 15/06/14 00:02, Noah Schreiber wrote:

    I can't figure out what CASE pin does. I know

    CASE stands for Computer Aided Software Engineering

     

    Sometimes, yes, but in this case (no pun intended) it doesn't stand for

    anything, it means "case".

     

    but I have no idea

    what to do with that pin in the USB can anybody help me?

     

    This is a USB-A plug, which (as you probably ought to know) is a four

    pin connector. The "case" pin is pin 5. It's not part of the USB

    circuit, but is connected to the metal body of the connector.

     

    You can connect it to chassis ground (if you have on) or leave it floating.

     

     

  • in reply to autodeskguest

    Dear: Guest

    I am working with a USB in diptrace and I ran into an acronym I have never seen before. This Acronym is ID but I have no idea what it means when it referring to a USB. Can you please help me? Also thank you for last time helping me.

    From Noah

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  • in reply to nschreiber0813

    Noah Schreiber wrote:

    I am working with a USB in diptrace and I ran into an acronym I have never seen before. This Acronym is ID but I have no idea what it means when it referring to a USB. Can you please help me?

     

    Hiya Noah,

     

    If you're using Diptrace, you should probably try the DipTrace Forum for questions.  There are some great people over there.  This forum is really about EAGLE, so we won't be able to help you as well as they might.  (BTW, I thought you were singing the praises of FreePCB?)

     

    The USB people have a couple different kinds of IDs.  There is a Vendor ID that identifies the manufacturer of a particular device, and there is a Product ID that is assigned for each separate device that a vendor makes...

     

    Regards,

    Doug