Modifying R/C Servo''s for 180° rotation?
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This is ringing bells Mike.
I seem to recall the the pot is normally about 5k and with the
additional fixed resistors, this would approximately double it's
range. I will pull one apart and have a play!
Many thanks - Steve/G4MJW
--- In basicstamps@yahoogroups.com, "Mike DeMetz" <miked@e...> wrote:
>
> They used to do it by adding 2.7K resistors in series with the
outside
> feedback pot leads.
> >
> > Most R/C servo's have a mechanical swing of about 180° but an
R/C TX
> > produces a PWM O/P of 1mS to 2mS which corresponds to a movement
of
> > only 90°. Anyone know of any easy way to modify a servo to give
a 180°
> > movement for the same I/P range of 1 to 2mS?
I seem to recall the the pot is normally about 5k and with the
additional fixed resistors, this would approximately double it's
range. I will pull one apart and have a play!
Many thanks - Steve/G4MJW
--- In basicstamps@yahoogroups.com, "Mike DeMetz" <miked@e...> wrote:
>
> They used to do it by adding 2.7K resistors in series with the
outside
> feedback pot leads.
> >
> > Most R/C servo's have a mechanical swing of about 180° but an
R/C TX
> > produces a PWM O/P of 1mS to 2mS which corresponds to a movement
of
> > only 90°. Anyone know of any easy way to modify a servo to give
a 180°
> > movement for the same I/P range of 1 to 2mS?