Newsgroups: comp.robotics
Path: cantaloupe.srv.cs.cmu.edu!das-news2.harvard.edu!news2.near.net!howland.reston.ans.net!news.sprintlink.net!pcnet.com!circellar!stephen.griswold
From: stephen.griswold@circellar.com
Subject: RE: Sound seeking robot?
Message-ID: <9506150008.006X301@circellar.com>
References: <3rifod$t6r@newsbf02.news.aol.com>
Organization: Circuit Cellar, Inc.
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Date: Thu, 15 Jun 95 00:08:10 -0400
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 RH> How would you build a sound seeking robot?
 RH> How could you build a robot that homes in in a sound louder than
 RH> ambient noise?
 RH> Could you build it to seek an ultrasonic pattern?

 RH> Regards,

 RH> Richard Hughes
 RH> Richard Hughes
 RH> Internet-> Rich924@aol.com
 AOL -> Rich 924

Rich, I can't rememberhowfar back, but Radioshack sold such a Toy robot
which did just that..  The remote was a small ultrasonic transmitter
with only a on/off switch.  the robot used two condenser mics on the
'Shoulders' of the robot (looked a little like a grey R2D2). When you
switched on the transmitter,  you could hear the clicking from it..
The robot would turn, and follow wherever the transmitter was.
(I used to see if I could confuse it, by holding the transmitter directly
over the top of it.. The robot would stop, turn a little, go forward., stop,
turn a little more.. generally stayed within 1-sq-ft of the transmitter.)
  If you held it behind it, it would actually turn, and re-track.
  
  It seemed to work well even when people began playing the stereos loud
in the store..   Stephen

___ Blue Wave/QWK v2.12
