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Subject: Re: steppermotor as encoder -> presto, moterized pot.
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Date: Sun, 06 Oct 2002 09:32:50 GMT
NNTP-Posting-Date: Sun, 06 Oct 2002 11:32:50 MET DST
> > >What we want is a moterized pot for a homemade amplifier,
> > >so that it can be controlled both manually and by remotecontrol.
> > >Since we lack mechanical skills (not me of course) we want it to
> > >be mechanically simple. For cosmetic reasons we want the volume
> > >knob to turn as well, when using the remote.
> Nah, we want the turnable knob too. A quick quarter clockwise turn
> increases the volume in a predictable way. It's okay to have up/dn
> buttons on the remote, although even a turnable knob would be
> > If you just really want the knob to move mysteriously, use a stepper.
> > Okay for a tuner or such, but for a pot that's silly!
> > -Steve
> The more expensive amplifiers use motorized pots, to provide that
> handy knob you can turn *and* make it controllable by a remote.
> Tough to build for the average hobbiest, unless he can get his
> hands on a true moterized pot. This stepper-thing could be an
> Perhaps it was a silly idea ;)
But why the hell don't you order a motorized pot, ready made by Alps or
Panasonic? You won't need a PIC either, just an infrared receiver with
up/down and a H-bridge to drive the DC-motor.
electronic hardware designer