Subject:
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Re: Extending IR communications
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Sat, 6 Aug 2005 08:07:19 GMT
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Viewed:
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4229 times
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In terms of power requirements and battery life, has anyone here
actually quantified how much of a difference that makes? Its a damn
good idea - as long as you have white, and relatively flat ceilings.
If you dont want/are not able to reposition the RCX, you could combine
both good ideas, and use a mirror to direct the RCX beam at the
ceiling. Is there a lego mirror in system or fabuland? (This is for
those who want to remain all Lego)
Orion
On 8/5/05, Dick Swan <dickswan@sbcglobal.net> wrote:
> Orient both RCXs so that they are pointing towards the ceiling. Set the RCX
> transmit power level to high (default is probably low power); there's
> probably some Lejos function to do this -- all it requires is setting one
> bit in an I/O register to 1. RCX signal will bounce off the ceiling. Verify
> this will work before building RCXs into your model. This works in my office
> with 10 foot ceilings
>
> -----Original Message-----
> From: news-gateway@lugnet.com [mailto:news-gateway@lugnet.com]On Behalf
> Of Claude Baumann
> Sent: Friday, August 05, 2005 1:45 AM
> To: lugnet.robotics.rcx@lugnet.com
> Subject: Re: Extending IR communications
>
>
> In lugnet.robotics.rcx, Christopher Dickinson wrote:
> > Greetings helpful companions. Now that I've buttered you up, let's move • on...
> >
> > I've built a robotic arm using my RCX 1.0 brick. I'm controlling it via • my
> > computer with LeJOS (not important, I think). What my issue arises is if • my arm
> > rotates, the IR face on the block is no longer facing the IR tower. My • first
> > thought was to attach the IR tower to the back of the RCX, but I will run • into a
> > similar issue soon - if my arm rotates, the cord for the IR tower will • wrap
> > around the arm's base.
> >
> > Have any of you out there come up with a solution to make the RCX system
> > completely wireless, or at least where my robotic arm could run without • wires
> > interfering or IR face dissapearing? Some sort of wireless bridge between • the
> > tower and the computer, perhaps?
> >
> > Thanks in advance.
> >
> > -Christopher
>
> Have you tried a mirror? Infrared light IS light !
--
http://orionrobots.co.uk - Build Robots
Online Castle Building RPG -
http://www.darkthrone.com/recruit.dt?uid=V30311I30328J30379X30379E30260X30277
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Message has 1 Reply:
 | | Re: Extending IR communications
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| Hello all. The mirror trick works for sending the signals from the IR tower to the RCX (I'm only using a single RCX). However, the return signal the RCX wants to send to the tower isn't transmitted across the mirror. Since you mentioned leJOS and (...) (19 years ago, 8-Aug-05, to lugnet.robotics.rcx)
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Message is in Reply To:
| | RE: Extending IR communications
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| Orient both RCXs so that they are pointing towards the ceiling. Set the RCX transmit power level to high (default is probably low power); there's probably some Lejos function to do this -- all it requires is setting one bit in an I/O register to 1. (...) (19 years ago, 5-Aug-05, to lugnet.robotics.rcx)
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