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Question Galvanic Vestibular Stimulation for sim racing

Discussion in 'DIY Motion Simulator Projects' started by Cameron Olson, May 15, 2021.

  1. Cameron Olson

    Cameron Olson Member Gold Contributor

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    My Motion Simulator:
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    First off this looks cool as shit also kinda freaks me out. How safe do you think this is? Also when is the simtools plugin for this come out lol?

    • Like Like x 1
    • Funny Funny x 1
  2. Gadget999

    Gadget999 Well-Known Member

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    its an interesting idea - however it looks like it could make you sick or disoriented

    not sure i like the idea of bombarding my ear nerves with electricity
    • Agree Agree x 1
  3. cfischer

    cfischer Active Member Gold Contributor

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    Thanks for posting this. I found out about GVS last year but didn't go too far down the rabbit hole when I learned that it only works of the sense of roll. Too bad it doesn't work for heave only. That would be the best imo.

    There is a gseat senior design project that just finished at Colorado University Boulder aerospace engineering that was built to play with gvs for piloting military drones(potentially). Pity it's only roll!

    BTW someone prove me wrong on it being limited to roll. Would love to hear otherwise.
  4. Cameron Olson

    Cameron Olson Member Gold Contributor

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    I would assume if works for the sense of roll (tilting side to side) it would work for the sense of pitch (tilting forwards and backwards too)
  5. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Mayo claims more DOF: https://www.vmocion.com/
    • Informative Informative x 1
  6. cfischer

    cfischer Active Member Gold Contributor

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  7. KydDynoMyte

    KydDynoMyte Fool's Gold Contributor

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    Looked like Samsung was about to come out with their Entrim 4D GVS headphones a few years ago, but they seem to have disappeared.
  8. Steve B

    Steve B Member

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    I watched the YouTube video last week, like many others the idea and low barrier to entry seemed too good to be true.
    So I did what any curious idiot would do and got ordering parts.

    Coppied the current limiting circuit and used a push button to activate the electrodes(by electrodes think M8 washers with wires soldered to them). Checked with a multimeter and the limiting circuit worked, 2.5 to 3ma with the electrodes shorted.

    Confident from that I wedged the washers under the rear of my headphones pressed the button and nothing, I couldn't feel a thing!
    Checked the current with the electrodes shorted and 3ma.

    Next I found some tens electrodes on Amazon and ordered them, my thinking being there was not enough surface area in the washers to conduct 3ma to my skin.

    Tens electrodes arrived today so I quickly attached them and sat down for testing.
    Slightly concerned I pressed the button and ooh this thing feels weird, the first thing I can feel is a tingling prickly feeling where the electrodes contact my skin. Funnily enough it's like getting a small electric shock, tolerable but not exactly pleasant.
    Then it feels like your head is being pulled to the side(left in this case), a bit like a magnet pulling my head. This effect starts gently and ramps up over a second or so as my head actually moved slightly to the left.
    There is also a slight disorienting or dizzy like feeling which would make it very difficult to drive like this.
    I did a few laps in iRacing manually pressing the button every right turn, it's so difficult to drive like this. As my head drifts left my eyes struggle to compensate and focusing on the track is hard.

    Now I know the effect is real and easy to achieve I will add a h-bridge an Arduino and interface it with iRacing.
    I need to figure out the minimum current required to feel the effect which will reduce/eliminate the tingles and then PWM fire the h-bridge with telemetry.
    Depending on how this feels I will either add the front electrodes to try and simulate acceleration/braking or abandon it and keep dreaming of motion sim's.

    Will be starting a new thread on this with progress on my personal torture device in the next few days.
    Steve
    • Like Like x 4