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Subject: 
Re: dual servos
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Fri, 17 Jan 1997 15:33:15 GMT
Original-From: 
Barry Brouillette <barry@barry.*stopspammers*detroit.sgi.com>
Viewed: 
1443 times
  
Hi,
Richard wrote:
- but I just read yesterday on a web page that servos want a signal (20 ms = ??
degrees) every 50 milliseconds or so

Right concept, wrong numbers.  Servos want to see a pulse about once every
20ms.  The pulse should be in the range of 1 - 2 ms, where a 1 ms pulse will
turn the servo all the way in one direction and a 2ms pulse will turn it all
the way in the other.  I don't have the exact values here at the office but
those are pretty close and will certainly get the servo to move somewhere in
their proper range.  I just bought a Futaba S-138 and it had the pulse widths
printed on the packaging.

Barry



Message is in Reply To:
  Re: dual servos
 
I'm a newbie at this, but I just read yesterday on a web page that servos want a signal (20 ms = ?? degrees) every 50 milliseconds or so, and if you stop sending the signal, they "go limp" and don't "hold" position tightly, but are deenergized and (...) (28 years ago, 17-Jan-97, to lugnet.robotics.handyboard)

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