Newsgroups: comp.robotics
Path: brunix!sgiblab!sgigate.sgi.com!olivea!koriel!sh.wide!wnoc-tyo-news!nkkgw!damned!hattori
From: hattori@csrd.nkk.co.jp (Mato Hattori)
Subject: Re: How do I control a hobby servo from a microcontroller?
In-Reply-To: frischherz@theben.kapsch.co.at's message of 7 Feb 1994 10:00:34 GMT
Message-ID: <HATTORI.94Feb8134744@gaea.csrd.nkk.co.jp>
Sender: news@nkk.co.jp
Organization: NKK corp.,Tokyo,Japan
References: <CKCs40.7nE@SSD.intel.com> <2ibqu3$6ia@nntp2.Stanford.EDU>
	<2j53g2$emr@theben.kapsch.co.at>
Date: Tue, 8 Feb 1994 04:47:44 GMT
Lines: 27

In article <2j53g2$emr@theben.kapsch.co.at> frischherz@theben.kapsch.co.at (Martin Frischherz) writes:

   In article <2ibqu3$6ia@nntp2.Stanford.EDU>, arc@leland.Stanford.EDU (Andrew Richard Conway) writes:
   >The signal is a (low current, 0/5V) pulse, repeated at 50 to 60 Hz. 
   >The pulse varies from about 1 to 2 microseconds from memory. I believe
   >it is normally low, pulsing high.

   The pulse width is about 1 to 2 MILLISECONDS.

100Hz pulse with 10-20% duty-cycle exactly.


5v ...    ___               ___              ___
          | |               | |              | |
          | |               | |              | |
0v ... ___| |_______________| |______________| |____
          <->               <->
          1-2msec           1-2msec
          <----------------><---------------->
                10msec             10msec

Good Luck!
--
Mato  Hattori                      Computer System Research Department,
email : hattori@csrd.nkk.co.jp     Electronics Research Center, NKK Corporation
voice : 81+44-322-6483 (office)    1-1 Minamiwatarida Kawasaki-ku
      : 81+44-246-9665 (home)      Kawasaki-city, 210 JAPAN
