Subject:
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RE: Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 24 Apr 2002 02:15:56 GMT
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Original-From:
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Andrew Burton <darkbeast@darkbeast.STOPSPAMMERScom>
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Viewed:
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You need to look up pbForth (or is it pBrick?) and NQC. Those are two
languages for the rcx that have variables -- specifically math, as I'm
not sure if there are strings for the RCX. But I digress, those have
variables. My guess, and I am taking a LEAP here, is that you're using
the Mindstorms's software which does not have variables.
Now, specifying a language you might prefer, and I say this having very
little experience with any of the languages -- there's a reason I lurk
-- pbForth allows you to terminal to the RCX and issue direct, real-time
commands through the infrared port. I've thought about a similar
project, using the full force of my computer to act as the brains.
You may also seriously want to look into PalmPilot programming in
regards to the RCX. One idea that's danced through my head, but I'm ill
prepared to work with yet, was attaching a PalmPilot to a LEGO creation.
The infrared on the PalmPilot allows communication (as people have
shown) and with a direct "connection" to the creation it could function
as the brains since it has more memory.
Anywhen: NQC and pbForth.
Andrew Burton
phone. (334) 876-9259
email. superboy@wccs.cc.al.us
> -----Original Message-----
> From: Stig Anders Mastad [mailto:stigam@student.sv.uio.no]
> Sent: Wednesday, April 24, 2002 2:51 AM
> To: lego-robotics@crynwr.com
> Subject: Not totally satisfied with the Lego Mindstorm
> concept: Mathematical variables and direct connection
> PC/mechanical device
>
>
> Hi group!
>
> I got some questions. For those not interested in my
> pre-LegoMindstorm history, go diretly to THE POINTS
>
> HISTORY: I learned to program in Basic in 1985 on a
> Commandore Vic20 and was fantacising about connecting
> mechanical items to my computer and make programs to manage
> them. Two years later, a friend of me borrowed the computer.
> When I got it back, it was broken. Unfortunately I did not
> continue with computer programming.
>
> Last year I had a kind of "boy-revival". I wanted to start
> "the dream" again. From people I met, I learned that I needed
> to program the ports of the computer to manage external
> devices. I started to learn JAVA, but I'm not sure if that's
> a good language for my purpose; I got "old" computers from
> friends of mine to experiment with; and started my little research.
>
> THE POINTS
> As a suprise I got a Lego Mindstorm set (LM-set) for
> Christmas. However, I'm not totally satisfied with the LM-set:
>
> 1. There is no direct contact between the PC and the LM-set.
> I was hoping to make use of the capasity of the whole
> computer (such as memory, speed, complexity). I understand
> that having the RCX makes it easier to make mobile creations
> and such work, but there's a lot of other things to make,
> f.ex. the Satelite uplink by Jerry Kalpin
> http://www3.sympatico.ca/jdkalpin, Ice-hockey > game (made by
> myself - not pictured on net), and so on).
>
> 2. I can't program the RCX to make and manipulate
> mathematical variables (f.ex: X=1, X=X+1). One of the first
> things I wanted to make, was a car driving around, counting
> how far it has driven, identifying obstacles, memorising all
> these information and having them in mind the next time it
> was out driving: to observe, remember and act "intelligent".
>
> QUESTIONS
> ad 1. Can I program directly to the ports by using JAVA or
> should I learn another language?
> - please send links and information.
>
> ad 2. I've seen some internet pages for programming the RCX
> in languages similar to C (NQC) and Java
> (http://lejos.sourceforge.net/) . From what I > understand,
> they do not operate with mathematical variable.
> - I'm I wrong or not? I'd like to make my LM-set creations
> more "intelligent" by using mathematical variables. Any help willl do!
>
>
> I'm not sure if these themes are discussed earlier on this
> mailinglist or any other place. If it has, please send me
> copies or links.
>
>
> Kind regards / Vennlig hilsen
>
> Stig Anders Mastad
> www.geocities.com/stiggissen/
>
>
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