Article View: sci.electronics
Article #10466Re: RC servo signals
From: Willie Smith
Date: Wed, 27 Feb 1991 19:17
Date: Wed, 27 Feb 1991 19:17
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1414 bytes
In article <1991Feb18.190110.23245@noose.ecn.purdue.edu>,
yegerleh@vivaldi.ecn.purdue.edu (James D Yegerlehner) writes...
>Some months ago, some kind and knowledgeable soul posted a brief
>description of the signal that one of those remote control airplane
>engine throttle servos expects. I recall that it was some odd
>kind of pulse width modulation, but little more. Does anyone
>still have that post, and if so, could you repost? Oh, I would
>also like to know what color coding of each of the wires means,
>if this is standard.
The servos see a PWM signal with a period of about 20 ms and a pulse width
of between 1 and 2 ms. Usually red is power supply (4 to 6 volts or so),
black is ground, and white is the PWM signal. Send mail for more info, but
that should be enough to make them work.
Willie Smith
smith@sndpit.enet.dec.com
smith%sndpit.enet.dec.com@decwrl.dec.com
{Usenet!Backbone}!decwrl!sndpit.enet.dec.com!smith
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!gatech!bloom-beacon!deccrl!news.crl.dec.com!shlump.nac.dec.com!sousa.enet.dec.com!sndpit.enet.dec.com!smith From: smith@sndpit.enet.dec.com (Willie Smith) Newsgroups: sci.electronics Subject: Re: RC servo signals Message-ID: <857@sousa.enet.dec.com> Date: 27 Feb 91 19:17:13 GMT Sender: newsa@sousa.enet.dec.com Distribution: usa Organization: Digital Equipment Corporation Lines: 20