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From: rrw@naucse.cse.nau.edu (Robert Wier)
Newsgroups: sci.electronics
Subject: Re: IR Reception - Modulation and Quality
Message-ID: <3700@naucse.cse.nau.edu>
Date: 6 May 91 22:54:06 GMT
References: <2766.27E40773@ofa123.fidonet.org> <159639@felix.UUCP> <1991May5.181912.24356@ux1.cso.uiuc.edu>
Organization: Northern Arizona University, Flagstaff AZ
Lines: 25



 I might be able to add a note to this.  My students this semester
 designed an ir control interface for an HO model train layout -
 they used volume up and down for speed, channel up and down for
 direction, and power on/off for emergency stop (all on a standard
 tv ir controller).

 They had it working flawlessly UNTIL the big day for the demo, which
 was on "Engineering Education Day" back in late February.  That
 day, they couldn't get it to work at all.  We suspect that it was
 the lasers zapping across the hall and the many amp electric motors
 running in the power lab next door producing all sorts of electrical
 hash running around in the air and on the power lines.  We didn't
 realize that the case on the Sharp ir receiver wasn't grounded at
 that point....


 - Bob Wier

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