Subject:
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Re: How advanced can RCX programming be?
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 11 Jan 2000 00:06:18 GMT
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Viewed:
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545 times
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On Mon, 10 Jan 2000 lego-robotics@crynwr.com wrote:
> > I hate to see this about a toy I've had so much fun with, but it isn't
> > likely that (esp. once you upgrade to pbForth or legOS) you'll feel
> > limited by software, even with the 32K limitation. The big limitation is
> > hardware. The sensors (esp. once you try to do anything with any kind of
> > precision) are an unreliable mess, and the fact that you can only use
> > three of them makes it difficult to do anything of any serious
> > computational complexity.
>
> You just have to know how to use what it comes with. It's really not that
> hard!
Unfortunately, it really is. The most egregious examples are of course
the light sensors, which a) are only vaguely linear b) don't have any
resolution at the high and low end and c) (worst) when measuring a
constant light source, will vary by up to 10% (5% in either direction.)
Touch sensors which often get stuck and stay depressed are another
example of poor design. The very irregular motors are another example.
Look- they are a lot of fun. I've enjoyed mine very much. But these kinds
of problems make it difficult to do anything "serious" with them. More
pertinently, they make the HW the limitation for the bot- not the
software (which was the point of the question in the first place).
-Luis
P.S. Alex, I too enjoy the mechanical end a lot. I can use mechanics to
(sort of) fix the rotation and touch sensors. I'm stuck with the poor
light sensors, no matter what, and that sort of stinks.
#######################################################################
Profanity is the one language that all programmers understand.
-Anonymous
#######################################################################
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Message has 1 Reply:
 | | Re: How advanced can RCX programming be?
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| (...) With the light gizmo from extreme creatures and some ingenuity you might be able to get more mileage out of your light sensor. Although I personally have found it adequate for the task everyone seems to use it for: detecting the presense or (...) (25 years ago, 11-Jan-00, to lugnet.robotics)
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