[sdiy] alternative to rotary switches ?

Ken Stone sasami at hotkey.net.au
Sat Mar 2 01:31:37 CET 2002


Pots with detents do exist, usually log taper, for use in car radios. The
local hobby shop chain www.dse.com.au used to sell them, though I think its
a discontinued line.

Ken
 
>> i'd appreciate hearing about other kinds of switches people use for 
>> multi-pole operations (4+ poles). i was thinking of a 
>> pushbutton array like 
>> on a blender, but cannot seem to find these in electronic 
>> (vs. mechanical) 
>
>This question comes up in my brain often.  Seems to me that it's much
>cheaper today to implement an electronic selector circuit with a pot and an
>MCU with an ADC input.  You get the added bonus of the smarts of an MCU.  
>
>If only there were pots available with a series of equally spaced detents to
>give the feeling of a selector switch, we'd have the problem solved.  Anyone
>know of pots with detents?
>
>John Speth
>mailto:johns at molectron.com 
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><META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12">
><TITLE>RE: [sdiy] alternative to rotary switches ?</TITLE>
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><P><FONT SIZE=2>> i'd appreciate hearing about other kinds of switches
people use for </FONT>
><BR><FONT SIZE=2>> multi-pole operations (4+ poles). i was thinking of a
</FONT>
><BR><FONT SIZE=2>> pushbutton array like </FONT>
><BR><FONT SIZE=2>> on a blender, but cannot seem to find these in
electronic </FONT>
><BR><FONT SIZE=2>> (vs. mechanical) </FONT>
></P>
>
><P><FONT SIZE=2>This question comes up in my brain often.  Seems to me
that it's much cheaper today to implement an electronic selector circuit
with a pot and an MCU with an ADC input.  You get the added bonus of
the smarts of an MCU.  </FONT></P>
>
><P><FONT SIZE=2>If only there were pots available with a series of equally
spaced detents to give the feeling of a selector switch, we'd have the
problem solved.  Anyone know of pots with detents?</FONT></P>
>
><P><FONT SIZE=2>John Speth</FONT>
><BR><FONT SIZE=2><A
HREF="mailto:johns at molectron.com">mailto:johns at molectron.com</A> </FONT>
></P>
>
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_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au  
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>




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