Subject:
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RE: servo motors
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 2 Mar 2000 15:19:18 GMT
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Original-From:
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E158 (M.FAZAL) <M.FAZAL@bham-eee!spamcake!-fs4.bham.ac.uk>
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Viewed:
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831 times
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> I'm not that familiar with the routines but it looks like you're shutting
> off the servos before they can move.
Yes you are right, i just figured out too. i have to give at least 0.3secs
for the servo to move to the required position.
> I also believe once you turn off the servo it won't hold it's position any
> longer.
actually the servo doesn't move when you turn it off. if you don't turn it
off some small movements are observed. i think its due to some small changes
in the pulse timing. so i found it is better to actually move to the
required position and turn the servo off. this way it holds it position
firmly.
cheers again
fazal
-----Original Message-----
From: James Munro
To: E158 (M.FAZAL)
Cc: lugnet.robotics.handyboard@lugnet.com
Sent: 3/2/00 2:48 PM
Subject: Re: servo motors
> wrote the following very simple code, and it doesnt work. can anyone • spot
> the problem.
>
>
> void main()
> {
> servo_on(); /* on servo */
> servo(3800); /* full left turn */
> servo_off(); /* off servo */
> fd(0); /* motor 0 on */
> sleep(2.0); /* for 2 secs */
> servo_on(); /* on servo */
> servo(2500); /* mid position */
> servo_off();
> }
What is it supposed to be doing? When you say _it_ doesn't work, what
exactly is not working? I'm not that familiar with the routines but it
looks like you're shutting off the servos before they can move. I also
believe once you turn off the servo it won't hold it's position any
longer.
-Jim Munro
<jimmn@xnet.com>
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