[simpits-tech] phidgits + Building Guages

[Frank Riedel]

I ment to have seen a kink to a site where it was discript  how
to convert a normal 180 dg servo to 360 dg....
am i wrong ???

Frank

----- Original Message -----
From: <mysticz28@swbell.net>
To: <simpits-tech@simpits.org>
Sent: Friday, October 25, 2002 6:13 AM
Subject: Re: [simpits-tech] phidgits + Building Guages


> Gene Buckle wrote:
> >
> > The problem is that everyone and their brother has a neat method of
> > driving a stepper motor, but nobody says anything about *feedback* from
> > that motor.
>
> That's because steppers can't talk back (or they would be servos).
> Fortunately for them, you talk enough to take up their slack ;)
>
> > This is a required feature for something like an ADI or HSI and useful
for
> > something like an altimeter.  THIS is something I'd throw money at.
>
> 1x Futaba S148 (since I have a ton of them) + 1x whatever gizmo you want
> to control it + suitable programming... RC servos might not be perfect
> since most can't do 360 degrees of rotation, but with the right gearing
> it would work for most gauges that don't require multiple sweeps of the
> needle (tach, EGT, CHT, flap pos., etc.) For HSI, altimeter, etc. it
> would probably be easiest to get feedback from an encoder.
>
> Haven't we all been through this a bazillion times?
> --
> Steve
> mysticz28@swbell.net
> Jesus saves, Budda enlightens, Cthulhu thinks you'll make a nice
> sandwich.
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