Drew Vassallo wrote:
>
> >BTW, like the other fellow, I'm a bit confused by your subject heading.
> >My guess is that the servo is pulling the supply voltage down and the
> >micro is resetting. What does this have to do with PORTB?
>
> As Dan corrected me, it's not the servo signal PIC pin that's drawing the
> current, it's the servo power supply lines.  Now that I think of it, I
> probably measured the draw overall, not just from the pin.


Hi Drew, maybe your servo DC motor is making nasty
noise on your power line? Try isolating the two power
lines by putting a large capacitor (470uF ?) across
the power very close to the servo, then a 5 ohm or
larger resistor from the battery to the servo cap.
Another large cap and resistor might help on the
PIC side too, if they run from the same battery.

For a cheap simple solution i've found a decent
size cap and series resistor usually outperforms
other filters. :o)
-Roman

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