<div><div dir="auto">There are existing 3D gesture controllers (with MIDI) see Leap Motion et al.</div></div><div dir="auto"><br></div><div dir="auto">Nowhere near as visually appealing tho!</div><div dir="auto"><br></div><div dir="auto">Regards,</div><div dir="auto">JPS</div><div><br><div class="gmail_quote"><div dir="ltr">On Mon, 27 Aug 2018 at 8:00 am, cheater00 cheater00 <<a href="mailto:cheater00@gmail.com">cheater00@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi, I was wondering if anyone tried using a plasma ball as a controller for an electronic circuit. I just think it would be pretty cool. The question really becomes how you could figure out where the beas hit.<div><br></div><div>Could you send mechanical waves through the dome? Maybe this would modulate the current, then based on phase difference (=delay) you could triangulate the beam location on the sphere. If you put two transducers at the very bottom of the sphere you might even only need to diangulate.</div><div><br></div><div>Could one build an electrostatic grid that would tell where the beams go through? Could this be scanned in an x-y scheme, like eg a pc keyboard?</div><div><br></div><div>Has anyone got any ideas?</div><div><br></div><div>Thanks</div>
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