Subject:
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Re: Creativity
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 31 Jul 2001 01:10:07 GMT
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Viewed:
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1544 times
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Hi Jeff,
Tell me more about your fuzzy logic line follower. My line follower was always
losing track of which side of the line it is on and turning in the wrong
direction. It would then stop and use an expanding sweep based on the ideas of
Dave Baum's book. I have a hardware solution though - a second light sensor.
A very simple control scheme then gives pretty smooth behavior.
Here are a couple of projects that push the limits of the RCX and NQC:
(1) Extend the line follower to navigate a grid to destination specified at run
time. Then block some of the intersections.
(2) Extand Dave Baum's Scanbot to navigate in a plane by using light beacons at
known locations. Requires trig functions in 16 bit integers.
Project 1 ran out of variable space in NQC, but now works in Java. The beacon
navigation is possible in NQC but its accuracy is not great for many reasons.
Roger G.
In lugnet.robotics.rcx, Jeff Lalo writes:
> As I found
> myself thinking more and more about what could be done with the RCX and NQC,
> I started to wonder what other people have done that really pushed the RCX
> and NQC to their creative limits.
>
> So everyone, what have you created that exemplifies the utmost in complexity
> and elegance? For myself, I have worked on several problems revolving
> around using Fuzzy control programs to make a line follower or control the
> temperature of a small, 1 cubic foot, green house (I am a Biologist) using
> Lego fans and vents.
>
> JL
>
> P.S. I keep focusing on the RCX and NQC because its this combination,
> IMHO, that allows everyone of all abilities to really start creating and
> understanding. Changing firmware and using some other language is great for
> the advanced programmer.
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Message has 1 Reply:
 | | Re: Creativity
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| IHi Roger, I have been meaning to make this available on the web, but I will try to give a brief explanation in advance. The fuzzy logic line follower that I have worked on also uses two light sensors and rack&pinion steering, but follows a line (...) (23 years ago, 1-Aug-01, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Creativity
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| Hi everyone, Someone asked me just the other day what good was playing with the Lego RCX. I quickly barked back that the RCX and NQC had taught me, a none programmer (well real world vs. Lego), a great deal about the essence of programming and the (...) (23 years ago, 26-Jul-01, to lugnet.robotics.rcx)
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