Subject:
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Re: servo ports on Exp board...help?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 21 Mar 2000 23:10:21 GMT
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Viewed:
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1227 times
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Hi,
We saw this exact problem last year. Our servos went so crazy that they
actually destroyed their gears and had to be scrapped. The fix is simple,
solder a capacitor across the motor leads. The motor causes noise on the
lines which the servo interprets as control signals. We used a .1 microfarad
ceramic disk capacitor from Radio Shack and the problem went away instantly.
Barry
In lugnet.robotics.handyboard, Alex Stewart writes:
> Hi
> the servo ports on my expboard seem to work fine, but when the servos
> are'nt active ( init_expbd_servos(0); ) and a motor is turned on the ports go
> crazy , servos will turn eratically, with hacked servos they just move in one
> direction. Would a filter cap help and if so were would one put it , in the
> motor ports or servo supply?
>
> Thanx -Alex
>
> PS- now that I think about it could seperating the servo supply to a diff. • batt
> work?.
>
> Thanx again.
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Message is in Reply To:
 | | servo ports on Exp board...help?
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| Hi the servo ports on my expboard seem to work fine, but when the servos are'nt active ( init_expbd_servos(0); ) and a motor is turned on the ports go crazy , servos will turn eratically, with hacked servos they just move in one direction. Would a (...) (25 years ago, 21-Mar-00, to lugnet.robotics.handyboard)
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