 | | Re: another comparison
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(...) Perhaps a good benchmark would be to write a PID controller and measure the number of control loop iterations per second that can be achieved under each environment. This incorporates sensor input with motor output, and uses a moderate amount (...) (18 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: This is the cancer that is killing Lugnet (Was Re: Apology)
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(...) Umm... the only person arguing here is you: the original posters had a problem with each other, that they resolved; argument ended. Period. If the two principles have moved beyond this, well... (18 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt, FTX)
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| | RE: Another Challenge. Performance Comparison
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(...) Here's my distilled summary of relative execution speeds of various Mindstorms products / environments. All data is normalized to the fastest performance. Relative Platform Product Speed 1X NXT RobotC 2X NXT Robolab 15X NXT NXT-G 5-10X RCX (...) (18 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: another comparison
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(...) I'd love to make some other comparisions; actually, some of us have been trying to figure out a good way to do this. Part of the problem is defineing specific "goals" for a battery of tests. A DFT (while impressive), is propably not the best (...) (18 years ago, 21-Jan-07, to lugnet.robotics)
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| | RE: What do these macros do? [IOMAP Access Execution Times
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(...) You're right. IOMapRead and IOMapWrite are very slow functions. They're slow because you pass a character string for the name of the module you want to access; the NXT-G firmware runs through the list of modules looking for a match on the (...) (18 years ago, 21-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: This is the cancer that is killing Lugnet (Was Re: Apology)
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(...) ...//snip... ...snip// (...) In fact, the whole Internet is a wasteland !! Anybody can do anything there!! For me LUGNET/robotics is an excellent forum. I participate for several years now and I must appreciate the contributions of many (...) (18 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | This is the cancer that is killing Lugnet (Was Re: Apology)
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OK, so from what I can gather: 1) Someone asks a (URL) question>. 2) Steve tells her to make a (URL). 3) John knocks out a brownie-points (URL) comparison chart> in about ten minutes. 4) Steve, having intended to follow his own advice, loses his (...) (18 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt, FTX)
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| | Re: What do these macros do?
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(...) Thanks for your response, John. That tip about the dirty flag not being IOMAPpable is very, very useful; I could have wasted a lot of time working that out the hard way. I'm working on a graphical display widget to show a 'radar' (well, sonar) (...) (18 years ago, 21-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) I've tried the no motor thing, but gave up after I could'nt get it to work. The pulling the ball to the side was one of the first things that I tried, but there are too many things that were uncontrollable. For instance, the direction the (...) (18 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) Thanks to those of you who filled in the set information. I actually got the balls from Bricklink, and the only thing I knew about them was they were from the Harry Potter sets. Peeron has been loading slow for me as well, and with that darn (...) (18 years ago, 21-Jan-07, to lugnet.robotics, FTX)
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| | Re: GBC- Magnetic Ball Separator
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(...) I thought of this immediately, specificly adapting the light sensor / train magent trick to try to get the dragon's egg to register. Alas, I've not gotten it to work (*yet*...), as the ball is not actually magnetic, but just has a piece of (...) (18 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: Like A Rock Crawler Hauler
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"Steve Hassenplug" <steve@teamhassenplug.org> wrote in message news:6.2.3.4.0.20070...lug.org... (...) way, as my browser displays a 404 File Not Found error. It's title is Unload Truck 2. Other than that I liked the other videos and the pics of (...) (18 years ago, 21-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: GBC- Magnetic Ball Separator
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(...) You may be able to kick the motor entirely. Have you tried embedding magnets in the floor and walls, close enough to attract, but not so much as to grab the ball? You could increase the slope to help with this also. :-) If the ball is magnetic (...) (18 years ago, 20-Jan-07, to lugnet.robotics)
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| | Re: Like A Rock Crawler Hauler
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(...) Well, all my LEGO is tmeporarily put away for a three-year-old's birthday party, but this morning I finally got a Rock Crawler working... and it immediately stalled out in a pile of NXT kit spare parts :-( Sigh. At least it easily drives over (...) (18 years ago, 20-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: GBC- Magnetic Ball Separator
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(...) You mean... [LEGOSet 4767-1] :) (18 years ago, 20-Jan-07, to lugnet.robotics, FTX)
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| | Re: Like A Rock Crawler Hauler
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Hi Steve Hassenplug, Your design is Great!!! Can you put more pics about your structure! Thanks. Juan Antonio Breña Moral (URL) (18 years ago, 20-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) Whoa, my apologies for leaving out a smiley in the first posting. I was as lazy as you at the fore, thinking "why not mention which set in the initial post?", so I had to look it up myself. A shame that set seems to have been released for such (...) (18 years ago, 20-Jan-07, to lugnet.robotics)
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| | another comparison
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We have compared the sampling and computing speed of NXT and RCX. NXT uses standard firmware 1.03 and is programmed with the LabVIEW toolkit. RCX is programmed with ULTIMATE ROBOLAB. Both bricks do the same thing: computing the DFT on a small (...) (18 years ago, 20-Jan-07, to lugnet.robotics)
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| | Re: Like A Rock Crawler Hauler
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(...) Very cool Steve... I can also atest the turn radius will stink since I did the same mod to the red tow truck set last year. You said you are using old style light sensors...Interfacing them to the NXT with the converter cables I assume? B (18 years ago, 20-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: GBC- Magnetic Ball Separator
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(...) This one I guess: (URL) GBC module!!! Philo (18 years ago, 20-Jan-07, to lugnet.robotics)
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