 | | calculating sensor resistance (Ohm's Law)
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I've been helping my little sister with her RCX-intensive science project, but we just finished all the calculations and her results seem screwy. Does anyone who understands RCX internals and/or Ohm's Law have some time to look this over and make (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | droid kit at compusa $20
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Just letting everyone know, Compusa has the Droid developer kit for 19.99 (usa, 29.99 with a 10.00 mail in rebate) on sale through Saturday. (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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Okay, gotta play the devils advocate and take this a step further. ;) Robot (noun). A robot has to have an onboard computer (processor) that is takes input from sensors and decides what to do with its outputs (actuators). It must be able to sense (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: Solar Cell Output in Direct Sunlight
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I have a Halogen uplight lighting a room and my solar cell will power a motor, with no load up to a distance of around '6 (3' work height) from the light pole. This will fluctuate according to the reflectance's of the ceiling, walls, etc. Rose (...) (24 years ago, 6-Apr-01, to lugnet.robotics, lugnet.dacta)
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| | New Outdoor Robot Photos
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I took some new photos of a couple of my robots, and they came out pretty good so I thought I'd share them. The photos were taken outdoors in indirect sunlight, with a Canon Powershot S20 3.34MP mounted on a Velbon tripod. Post-processing consisted (...) (24 years ago, 6-Apr-01, to lugnet.robotics, lugnet.publish.photography)
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| | Re: robotica on TLC
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(...) Yeah, DGPS would probably be accurate enough, assuming you could get around the no-lock problem. (...) I believe the on-board GPS receiver would still need to fix on the Navstar constellation, regardless of whether or not it was a (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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(...) If you go to the website of the show, they say that *everything* in the junkyard is seeded. Everything that's there was put there by the show's producers. Not that it really makes the show less enjoyable. Although for some strange reason a (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: More juice out of the standard motors.
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Mark Haye <mhaye(@)tivoli(.)com> wrote in message news:GA9p5z.JwG@lugnet.com... (...) 33% more voltage should also give you 33% more current, so power (i.e. voltage times current) should increase by 77%. But higher currents give higher (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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(...) I didn't realize that expressing an opinion was being defensive. Personally I enjoy the conversation much more if the participants are at least a bit passionate about the subject. I realize this is contrary to U.S. culture with it's emphasis (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: Advanced Control strategies
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Definately agree on LegOS, my final year Computer Science dissertation was on autonmous learning on an RCX with genetic programming, I used LegOS 2.5, great stuff full C++ if you can do it in ansi you can do it here... But I'd say the best place to (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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(...) I'm also a big fan of Junkyard Wars, they give my Rock Raiders figs someone to emulate. I think most of the seeding is done for safety reasons; I wouldn't want to be anywhere near someone trying to make their own rocket fuels/motors. Also, in (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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Scientific American Frontiers on PBS ran a show, NATURAL BORN ROBOTS, last year. It was rebroadcast last night here in the Tampa Area. The show ended with a segment called 'Go Team' which covered Robocup 99 held in Stockholm. Teams from around the (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: Speaking of motors ( was:Re: More juice out of the standard motors.)
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Yes, it's a bad motor. Call Lego Customer Service and kindly ask for a replacement. The motor should spin freely when turned by hand. (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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How about showing this on TV? (URL) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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Wow, some of you get really defensive about this thing, Here is the reason why I started this thread. For every show they show on TV there will be someone who loves it and someone who wouldn't watch it even if you paid him/her to watch it. My (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Robot building in the news (non-lego)
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Short article: (URL) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Speaking of motors ( was:Re: More juice out of the standard motors.)
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Hope this is not off-topic, but I have a 8735 motor. The problem is that in runs for a little while (on full juice from the battery box), but then stops. It is a new motor, but when I try turn the stem by hand, I couldn't (without pliers). Is the (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: List software?
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(...) ^^^^^ What?! That is completely new to me :-) On Linux, use mutt, this mailer does SSL and all sorts of fancy replies. (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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(...) What makes you say this? Why should cars in England corrode any differently from cars in other countries? TT. (24 years ago, 6-Apr-01, to lugnet.robotics)
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| | Re: robotica on TLC
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(...) I've been trying to start up a local Lego robotics group to do something like that - but so far, response from parents in the area has been disappointing. (...) They certainly do seed the junkyard for *some* of the activities - in the rocketry (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
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