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How to supply Voltage to USB port?

Discussion in 'General Electronics Discussion' started by abhishekshishodia, Jun 6, 2011.

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  1. abhishekshishodia


    Jun 6, 2011
    Hello Guys,

    Someone please tell me, is it possible to supply external voltage to USB port
    and detect this through an application running on the system. or else convert
    externally supplied voltage to data and input it to USB so that running application
    would detect it.

    Please tell me asap........
  2. davenn

    davenn Moderator

    Sep 5, 2009
    you need to use an A to D converter and have the appropdiate software to read that data.

    there are a number of systems available
    google USB oscilloscope, USB ADC etc

  3. abhishekshishodia


    Jun 6, 2011
    Is 1-bit ADC sufficient for that?

    Please tell me if 1-bit ADC is sufficient for this. Also give me the circuit diagram for that,
    Also the device I have to create should output 1 only if Voltage is 5 V other than output 0.
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