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Author Topic: touch sensor diy  (Read 545 times)
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Collegno, Turin
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how you would construct a touch sensor with recycling material? something that could be pressed by feet  with shoes not with feet naked?
 

thanks to all
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While I can't give you a specific answer I would suggest that you search for DIY DDR mats as they use something similar to what you want.
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I don't think you connected the grounds, Dave.
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You could wire the switch to an electric shock generator, so people wouldn't want to switch it with bare feet   ;D
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Is this something that people will walk on?  A pedal switch for a game controller?

How it will be used makes a big difference in how you should design it.

ran
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Manchester (England England)
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Use a pressure pad or mat, of the sort used in home security alarms.
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Okay, here's something I have done.  Take a thin piece of foam, squishable material, about 1/8 to 3/16 inch thick.  Every inch and a half or so, cut a about 3/4 of an inch circle hole.  Keep doing this until you have a grid like pattern.  Take two pieces of aluminum foil and put one on top of the foam and one on the bottom like a sandwich.  Connect wires to the foil.  When someone steps on it, the foil pieces touch through the holes.  
Voilà!
Hope that helped!
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And if you make the foam conduction foam, the sort of stuff they pack electronics in, you can make the resistance proportional to how much it is compressed and have a variable foot pedal.
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Collegno, Turin
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thanks everybody! yes something similar to a DDR...the problem is that the installation will be built in the street in november or maybe in a rail station...so if its rains..... :o

i woul do something non-conductive if its possibile to do....

however yours ideas make me think a lot!   smiley-wink



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