Newsgroups: comp.robotics
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From: stupak@ssd.intel.com (Mike Stupak )
Subject: How do I control a hobby servo from a microcontroller?
Message-ID: <CKCs40.7nE@SSD.intel.com>
Sender: usenet@SSD.intel.com
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Organization: Supercomputer Systems Division (SSD), Intel
Date: Fri, 28 Jan 1994 18:45:36 GMT
Lines: 18

  I have several hobby servos (remote control glider type) that I would
like to run from a microcontroller.  I'm not sure what type of signals
it needs on which wire.  My understanding is that these are PWM controlled
such that the position is proportional to the pulse width.  What pulse
width (and frequency) is necessary?  What are appropriate voltage and 
current levels?  Is any additional power source required?  Is any additional
circuitry required?
  My glider has a radio reciever, battery pack, servos, and a central
"plug-it-all-together" module, but I'm not sure what signals are sent
from the receiver module.

  Thanks for any help.

  -mike

-- 
Mike Stupak
stupak@ssd.intel.com
