Subject:
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RE: IR Transmitter
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 1 Jul 1999 09:51:49 GMT
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Original-From:
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Barbour, David <david.barbour@siemensNOMORESPAM.ie>
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Viewed:
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1000 times
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I agree, it would be very useful if the PC could take direct control.
But hey, if the IR tower is just too lazy then send him to bed and
set ourselves the challenge of creating a new IR tower for direct
PC control - yes?!
I'm running my code from a Tecra 8000 latptop and a thought popped
into my head recently - wonder if I could use my IR port...
Anyway - it still surprises me how good the IR tower actually is - I've
never had a problem with it...
Proteus
> -----Original Message-----
> From: Chris Phillips [SMTP:chris.phillips.deathtospam@computerboards.com]
> Sent: 30 June 1999 23:37
> To: lego-robotics@crynwr.com
> Subject: Re: IR Transmitter - where's the "off" switch?
>
> Brian H. Nielsen <70401.2635@compuserve.com> wrote in message ...
> > I've read the messages about the IR Tower powering off and people
> > trying to keep them ON, but I don't understand why you would want the IR
> > Tower on all the time. It's main function is to download programs to
> > the RCX brick, with additional use when using the Test panel. Why does
> > it need to be on any other time? Is there another use I don't know
> > about yet that involves realtime communication with a program running in
> > the RCX?
>
>
> The application where it is desirable to keep the tower turned on is
> when
> you want one or more RCXes to be able to send messages to a program
> running
> on the host computer. The computer must send out some data every 3
> seconds
> or else the tower will shut down, and it won't receive anything sent from
> an
> RCX.
>
> This is not an issue for most RIS users. You would have to be writing
> a
> special application that would run on your PC to listen to the RCX this
> way.
> The standard Lego software doesn't do this.
>
> But there are many applications where this would be a cool thing to be
> able to do. For example, imagine if your poor little RCX could use your
> computer like a network file server. Whenever it wanted to, it could send
> data to the PC to be stored in a file, or ask the computer to send back
> the
> contents of a previously-written file. This would require that a server
> application be running on the PC to handle these file requests. The
> server
> would have to constantly be "talking" just so that it could keep on
> "listening" for requests from the RCX. I don't know if you've ever
> noticed,
> but it's a lot harder to hear with your mouth wide open.
>
> Some folks over in the LegOS camp are trying to implement a network
> protocol for the RCX to enable robots to send more detailed information
> packets around than the one-byte messages supported by the RCX firmware.
> It
> sounds like they're trying to figure out how the computer fits into this
> network, but they've been running into some very tricky problems because
> the
> tower has such a bad case of narcolepsy.
>
> I hope this helps to answer your question without supplying "too much
> information."
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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