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 14:26:32 GMT
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Original-From:
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Steve Baker <SJBAKER1@AIRMAIL.spamcakeNET>
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Reply-To:
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sjbaker1@#nomorespam#airmail.net
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Viewed:
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640 times
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Stig Anders Mastad wrote:
> 2. I can't program the RCX to make and manipulate mathematical
> variables (f.ex: X=1, X=X+1).
You need to download the free program "NQC" (which stands for 'Not Quite C').
It's a compiler for a subset of the C programming language for the RCX - and
with it you can certainly program the RCX to do things with variables.
> 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".
In principle this is possible - but there are quite a few challenges along the
way. Accurate navigation is quite difficult - but the difficulties are mechanical
in nature and not software limitations.
> QUESTIONS
> ad 1. Can I program directly to the ports by using JAVA or should I learn another language?
> - please send links and information.
There is a JAVA implementation for RCX - check out "LeJOS"
> 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.
Sure they do.
> - 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 think you should learn NQC.
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