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 Robotics / Handy Board / 7524
7523  |  7525
Subject: 
Re: Exp. board Servo
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Wed, 1 Mar 2000 10:55:33 GMT
Viewed: 
1159 times
  
James Munro wrote:


Well, since it seems these values often vary from servo to servo I usually
set them by using the knob function and scaling it down so I can visually
see the numbers I'm putting into it and the result on the servo; turning
it until it chatters one way and then the others and keeping track of the
numbers.

Fortunately there is a direct relationship between servo-value and
angle.
Try different angles (for example 0 / 45 / 90 / 135 / 180 degree) and
draw the diagram value vs. angle (for example with MS Excel). You will
(hopefully) see a linear relationship and Excel can even give you the
function. This makes a lookup-table redundant!

Hope this helps.

Dirk


--
------------------------------------------------------------------------
   Dirk Stueker      Zietenstr. 36      26131 Oldenburg        Germany
   Department of Computer Science              University of Oldenburg
   Tel. & Fax: +49 / 441 / 5 39 35
========================================================================
Home-P: http://condor.informatik.uni-oldenburg.de/stueker
E-Mail: stueker@gmx.de     (=dirk.stueker@informatik.uni-oldenburg.de)
------------------------------------------------------------------------



Message is in Reply To:
  Re: Exp. board Servo
 
(...) Well, since it seems these values often vary from servo to servo I usually set them by using the knob function and scaling it down so I can visually see the numbers I'm putting into it and the result on the servo; turning it until it chatters (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)

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