Subject:
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Re: !!! Laser attachments for Mindstorms !!!
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 14 Nov 1999 12:34:43 GMT
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Original-From:
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Andy Gombos <GOMBOS@NE.INFIavoidspam.NET>
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Reply-To:
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[gombos@ne.infi.net]stopspam[]
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Viewed:
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733 times
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How far away can the RCX be before the return cannnot be detected?
Andy
Peter Pletcher wrote:
> I've found that shooting a laser pointer at a bicycle reflector gives a
> good enough return (to a light sensor right next to the laser source) to
> be detected. You can use this for navigation, as the RCX can turn
> around and find strategically mounted reflectors.
>
> Sorry, Josh, but I'll stick with my $8 laser pointer. If your brick
> allows the beam to be turned on and off with, say, a motor output that's
> pretty cool, though.
>
> Nick Goetz wrote:
> >
> > Forgive my ignorance with respect to robotics and the like but what would
> > you do with a laser? Is it used for guiding the robot or can the RCX detect
> > when the beam is broken? I don't assume it is used to zap dirty dishes from
> > the dinner table. <g>
> >
> > -Nick
> >
> > Josh Yeager wrote in message ...
> > > Hi all,
> > > I am selling laser modules for Mindstorms. The modules are
> > > two 2x6 lego bricks one on top of the other with a plate on the bottom.
> > > It has a wire with a lego power connector on the end attached to one
> > > end, and the laser sticks out about 1mm from the other end. The wire
> > > attaches to an output port of the RCX. The modules are available in
> > > blue or black, but if you would like another color, I may be able to get
> > > it for you with a slight delay. The price is $35, which includes shipping.
> > > To order, email me and tell me which color you would like. I need at
> > > least three more orders, or I will have to raise the price.
> > >
> > > Josh Yeager
>
> --
> // Peter Pletcher peterpl@pacbell.net
> //
> // A little nonsense now and then is relished by the wisest men.
> //
> // - Roald Dahl (from Willy Wonka and the Chocolate Factory)
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Message has 1 Reply:
 | | Re: !!! Laser attachments for Mindstorms !!!
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| (...) I don't know. I am working indoors, and detection is not a problem across my living room, about 5 meters. Now that you ask, I'll probably try it outside and find the answer. That's an advantage of using a laser - the beam disperses very (...) (25 years ago, 15-Nov-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: !!! Laser attachments for Mindstorms !!!
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| I've found that shooting a laser pointer at a bicycle reflector gives a good enough return (to a light sensor right next to the laser source) to be detected. You can use this for navigation, as the RCX can turn around and find strategically mounted (...) (25 years ago, 14-Nov-99, to lugnet.robotics)
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