Newsgroups: comp.robotics
Path: brunix!uunet!cs.utexas.edu!utnut!torn!newshub.ccs.yorku.ca!newshub.ariel.yorku.ca!cs911225
From: cs911225@ariel.yorku.ca (KEN E WILLMOTT)
Subject: Re: IR collision detecter
Message-ID: <1993Aug31.141742.5437@newshub.ariel.yorku.ca>
Keywords: Infrared
Sender: news@newshub.ariel.yorku.ca (USENET News System)
Organization: York University, Toronto, Canada
References: <$1$@byu.edu>
Date: Tue, 31 Aug 1993 14:17:42 GMT
Lines: 15

>Could someone tell me where I could find a simple schematic
>for an infrared collision detect circuit?  I have messed around
>a bit with making my own but the receiver always seems to be
>swamped by the room light.  Any help is appreciated.

>- Russ Petersen

Use 40KHz modulated light. Radio shack sells an IR receiver that's
made by Sharp. There is a schematic on the package for a transmitter
(although it's not the circuit *I* would use).


	-Ken Willmott


