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How do I make a touchscreen that requires a stylus? Answered

I want to either make a touchscreen or install one (though I don't know where I would source the parts for that).  Basically I don't want the touchscreen to pick up on my hand.  I have a Wacom Bamboo tablet which requires a stylus and that's essentially what I want here.  That would most likely be an inductive touchscreen, so I'd be interested in making something like that.  Preferably mostly see-through if possible.

Basically: How would I make that (or where would I buy a raw element for something like that), and how difficult would it be to interface with that (i.e. via microcontroller).

Thanks.

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Toga_Dan
Toga_Dan

3 years ago

try putting a sheet of plastic over a touchscreen. If it is thick enough, your finger won't work. I think a stylus will work at a greater distance.

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thatgamesguy
thatgamesguy

Reply 3 years ago

That would still get some interference from the resting of the hand I'm afraid...

Although, looking up the patent for inductive type touchscreens, I've pretty much figured out exactly what I would need to build one of these and how I'd accomplish that. If I had the equipment (oscilloscope, function generator, etc), I could actually do so quite easily.

For those interested, look up US Patent # US7292229

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Toga_Dan
Toga_Dan

Reply 3 years ago

You could spend $___ on the high tech way, or $___ on some plexiglass.

I don't know if the plexiglass would work.

What I can say is that a thin pair of knit gloves keeps my finger from working.