[sdiy] Call for opinions: Walsh Module

Tom Arnold xyzzy at sysabend.org
Wed Sep 11 02:18:19 CEST 2002


On Tue, Sep 10, 2002 at 10:38:48PM +0100, Seb Francis wrote:
> Tim Ressel wrote:
> 
> > Ouch! I just looked at the prices of digital pots. Oy!
> >
> 
> ALPS STEC16B 16mm rotary enoders 24 sine pulse per revolution
> CPC 87p each for 5+
> (SW01640 / SW01641 / SW01642 / SW01643)
> 
> Just get a PIC + Mux to read them and your away ...

Try using a Stepper motor unstead.
http://www.4qdtec.com/stpen.html
http://members.iinet.net.au/~richardh/Rotenc.htm

Very cheap, have to build some interface circuitry, but the 
tactile feel is I think amazingly better.  I've been picking up
surplus diskdrive ones for $1.

-- 
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 - Tom Arnold -       When I was small, I was in love,                  - 
 - Sysabend   -       In love with everything.                          -
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