Newsgroups: comp.robotics
Path: cantaloupe.srv.cs.cmu.edu!das-news2.harvard.edu!news2.near.net!howland.reston.ans.net!gatech!purdue!yuma!csn!stortek!daveh
From: daveh@atlantis.stortek.com (David Helms x4098)
Subject: R/C transmiter output
Message-ID: <D00104.JtE@stortek.com>
Originator: daveh@poplar
Sender: news@stortek.com
Organization: Storage Technology
Date: Mon, 28 Nov 1994 22:26:27 GMT
Lines: 19

Hi all,

I have a question that I haven't been able to figure
out and am looking for some info. The ? deals with the
output of an R/C transmitter and receiver. I understand
that the transmitter puts out variable pulse widths
based on the position of the joysticks. What I don't
understand is how a receiver knows weather I want to
reverse or not. Is the matter of reverse just based on
pulse widths also or is the transmitter output changed in 
some other way. Also at the receiver end would the thing
to do for reverse is to run the input into a dual voltage
comparator and have different trigger points that will
produce a negative or positive rail to the motor which
reverses the polarity.

Thanks for any response.

dave
