06784 [alt-beam] IR object sensor and jammer

Alt-BEAM Archive

Message #06784

To: beam@sgiblab.sgi.com
From: Ian Bernstein ian@beam-online.com
Date: Sat, 16 Oct 99 17:41:09 -0600
Subject: [alt-beam] IR object sensor and jammer

Hi
I've built a few IR object detectors which use the sharp IR detector and
a 40K emitter that will give me a range of about a foot max. If I disable
the emitter and use my TV remote I get a range of like 8 feet. Why is
that? And is there a schematic for an emitter circuit like the one in my
TV remote?
Also is there a way to jam a 40K object detector so it won't pick up an
object that has the jammer on it. I think I remember something about
emitting a 80K signal but I don't remember.

Thanks, Laterz

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