Re: Digital potmeter with on/off switch?

"Joerg" <notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> schreef in bericht
news:pHS0g.70312$dW3.52817@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Currently there is no uC, it's just for a few demo models. I am afraid
I'll have to cook up some logic like usual. I wonder why there is no
product for the typical scenario: Dormant upon power-up, wiper at bottom
and not in the middle like most of them. Hit UP button, unit turns on or
a logic output goes high. Hit UP some more and pot wiper goes upwards.
All that's needed would be a logic output, the rest could be done with
FETs and stuff. Holding the DOWN button long enough would turn it all
off again.

Yes, I see the DS1809 now, that looks okay. Add a 4538 kludge and
you're all done.

BTW, the typical scenario is that users search for an on/off
switch. They panic when they can't find such button ;)

The old potmeter + switch worked, because it also gives the
audible click when turned CCW.

Oh, please add the little speaker that plays "tingel di dum" when
powered on, and "ta di da dom" when powered off ;)

--
Thanks, Frank.
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