Is there a way to turn a Raspberry Pi 3 into a VSM for Epee?

Discussion in 'Fencing Discussion' started by Christian Edwards, Feb 9, 2019.

  1. Christian Edwards

    Christian Edwards Rookie

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    Hello, I'd like to be able to practice at home electrically instead of dry, however, I can't afford an expensive scoring machine. Does anybody know how to turn something like a raspberry pi into a scoring machine in some way?
     
  2. JS Hart

    JS Hart DE Bracket

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    VSM

    VSM runs on any Windows PC since Windows 98. Any old, surplus laptop or desktop. Or a Windows Tablet; you can get a cheap tablet for around $80.
     
    Last edited: Feb 9, 2019
  3. SJCFU#2

    SJCFU#2 Podium

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    If you are actually going to practice against an opponent (as opposed to simply doing drills), then the scoring machine may be the least expensive of your problems (especially for epee, where old analog machines which cannot be updated for foil or saber are still usable). You also need to somehow connect both fencers to the machine.

    And if all you are going to do are individual drills then you really don't need a scoring machine. A simple buzz box that goes off whenever the tip is pressed in enough to close the A-to-B circuit will suffice.
     
  4. dcchew

    dcchew Podium

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  5. mtwieg2

    mtwieg2 DE Bracket

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    Any microcontroller can be programmed into a workable scoring machine so long as it has a dozen or so available GPIOs. An Arduino can do it, and a Rasberry Pi is a hundred times more powerful.
     
  6. K O'N

    K O'N Podium

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    I made an epee box based on a $20 STAMP chip fifteen years ago. Still works fine:



    The logic is bone simple, I wrote the whole thing while watching a football game on tv. The only tweak needed was a debounce delay to keep bell guard touches from going off.
     
  7. neevel

    neevel Armorer

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    The cheapest approach might be to ask around (or post on the Trading Post forum here) if anyone has an old, non-upgradable 2-weapon scoring box that they would like to part with for little-or-no money.

    If you have a space to set it up, a bungee or clothesline reel cable system can be cobbled together for maybe $60-80 using four-conductor phone line for the cable and epee sockets as the couplings.
     
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  8. jeff price

    jeff price Rookie

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    You can build a box for about 35 bucks using an Arduino. there are several threads about scoring machines here.
     

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