[sdiy] touch switches

[Fdi]

http://www.paia.com/touchsw.htm
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> De: Tim Parkhurst <tparkhurst at siliconbandwidth.com>
> Fecha: Fri, 26 Sep 2003 11:33:17 -0700
> Para: "'Peter Grenader'" <peter at buzzclick-music.com>,
> synth-diy at dropmix.xs4all.nl
> Asunto: RE: [sdiy] OK, so...there's this guy...
>
> Maybe this guy should do a search under "capacitive Switches" or "Touch
> Switches." It sounds like this guy wants to do something LIKE a touch
> switch, but not exactly the same thing. However, maybe some of the tricks
> used with capacitive switches and touch switches (using RF fields,
proximity
> detection, using finger capacitance to vary the speed of an oscillator and
> detecting the frequency change, etc.) might help this guy out in his
> obviously noble quest for knowledge, truth, and weird noises.
>
> This guy might also want to check out the wacky capacitive pitch bender
used
> on the PAIA "Oz" mini organ years ago.
>
>
> Tim Servo
> (with theme to "That Girl" and lyrics changed to "This Guy" running
through
> his head now)
>
> **************************
>
>
>> -----Original Message-----
>> From: Peter Grenader [mailto:peter at buzzclick-music.com]
>> Sent: Friday, September 26, 2003 10:47 AM
>> To: synth-diy at dropmix.xs4all.nl
>> Subject: [sdiy] OK, so...there's this guy...
>>
>> And let's say, for argument sake, that this guy is working of creating a
>> logical true (high) when his finger is placed on a piece of conductive
>> material, be it a small strip of metal or a coin, or anything with
similar
>> conductive qualities.
>>
>> And let's just say that he's got it to the point where a signal will in
>> fact
>> rise from ground to about 2 tenths of a volt, albeit one that's looks to
>> be
>> nothing more than amplified noise in that it's a somewhat messed up sine
>> wave with a period of about 15 ms.
>>
>> And let's say, for argument sake, that this guy has tried a few tricks in
>> an
>> attempt to convert that to a linear DC level of .2 volts without success.
>>
>> What would you suggest I, I mean... *this guy*, try next?
>>
>> Any suggestions?
>>
>> thanks in advance,
>>
>> Peter
>>
>>
>>
>
>
>
>
>
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