Subject:
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Re: Collision Advoidance Emitter Circuit
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 22 Apr 1997 11:21:40 GMT
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Original-From:
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Pandit Panburana <pdp@ix.netcom%nomorespam%.com>
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Viewed:
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2034 times
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Hi Gordon,
When you mentioned about "doesn't have a ground in it", are
you refering to the part the drives the LEDs, right ? If so, the
explaination of the circuit is that when the output of the inverter
that connected to a 100 ohm register goes low then
the current can flow through the LED into the inverter (sinking
the current).
-Pandit
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> From: Gordon Smith <smith21@mail.sdsu.edu>
> To: handyboard@media.mit.edu
> Subject: Collision Advoidance Emitter Circuit
> Date: Monday, April 21, 1997 11:21 PM
>
> Hi All,
> Had anyone actually built the Infared LED emitter circuit that is on • the
> Rug Warrior? (i.e. pg 108 of Chapter 5 of the book "Mobile Robots" by • Jones
> and Flynn). I've looked at it and I can't for the life of me figure out • how
> it works. Before I get the soldering Iron out, I'd like someone to tell • me
> that "Yep, it works" and try and explain how something that doesn't have • a
> ground in it can work. Thanxs for your time and replies.
>
> Gordon F. Smith II
>
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