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Parallax USB Oscilloscope - 40-volt attenuation feature — Parallax Forums

Parallax USB Oscilloscope - 40-volt attenuation feature

Mike CookMike Cook Posts: 829
edited 2006-03-27 18:16 in General Discussion
I was looking through the help file in the current Parallax USB Oscilloscope software (4.0). Is this just out dated information or is it supported? If it's supported where can I find info on this circuit. Clicking on the link 'Optimum Designs Inc.' takes you to the Parallax USB Oscilloscope page.

"The 40-volt attenuation feature requires additional hardware between the OPTAscope and the probes. This circuitry can be purchased from Optimum Designs Inc."

Also noticed the 4 pin SX header (J1)·inside the scope. Is the current firmware for this scope still 2.0.7?

·attachment.php?attachmentid=40965

Thanks,

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Mike
"OEM NMEA GPS Module" Now available on ebay for only $17.49
http://www.allsurplus.net/Axiom/

Post Edited (Mike Cook) : 3/24/2006 10:55:26 PM GMT
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Comments

  • Paul Sr.Paul Sr. Posts: 435
    edited 2006-03-24 23:17
    Mike Cook said...

    I was looking through the help file in the current Parallax USB Oscilloscope software (4.0). Is this just out dated information or is it supported? If it's supported where can I find info on this circuit. Clicking on the link 'Optimum Designs Inc.' takes you to the Parallax USB Oscilloscope page.

    "The 40-volt attenuation feature requires additional hardware between the OPTAscope and the probes. This circuitry can be purchased from Optimum Designs Inc."

    Also noticed the 4 pin SX header (J1) inside the scope. Is the current firmware for this scope still 2.0.7?

    attachment.php?attachmentid=40965

    Thanks,

    Your not supposed to show it's guts like that here.....
  • Mike CookMike Cook Posts: 829
    edited 2006-03-24 23:19
    tongue.gif

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Mike
    "OEM NMEA GPS Module" Now available on ebay for only $17.49
    http://www.allsurplus.net/Axiom/

  • Doug PientakDoug Pientak Posts: 16
    edited 2006-03-27 18:14
    Hello,
    ·
    The 40V hardware was never developed and the comment in the software was to be removed.· How ever you can use this feature by adding a 1M ohm resistor in series with the oscilloscope probe.·
    ·
    2.0.7 is the latest firmware for the hardware.··No·updates.·
    ·
    I hope this answers your questions.·
    ·
    Doug Pientak
    Parallax Engineering
    ·
  • Mike CookMike Cook Posts: 829
    edited 2006-03-27 18:16
    Thanks Doug!

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Mike
    "OEM NMEA GPS Module" Now available on ebay for only $17.49
    http://www.allsurplus.net/Axiom/

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