 | | Navigation by sound?
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Hi, has anybody tried a setup like this: - The tower sends a message to the RCX. - The RCX beeps. - The beep sound is captured by two microphones on two neighbouring corners of the navigation space. - Their signal is fed into a stereo soundcard. - (...) (25 years ago, 30-Nov-00, to lugnet.robotics)
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| | mindstorms/robolab in uk schools
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hi - (especially if there are any uk teachers susbrcibed to this group....) i was wondering if anyone had any idea of what sort of penetration lego has achieved into schools with its rcx bricks via mindstorms/robolab kits, and the extent to (...) (25 years ago, 29-Nov-00, to lugnet.robotics)
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| | Re: 2 motors, different speeds
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I have a whole article on this very subject: (...) (25 years ago, 29-Nov-00, to lugnet.robotics)
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| | RE: Hi there
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Depending on your lego skills, it would be better to follow a few simpler designs at first, building the bot is only about half the battle the other half is getting the code to make it do what you want. You need experience with sensors, motors, how (...) (25 years ago, 29-Nov-00, to lugnet.robotics)
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| | RE: Mindstorms book
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I bought the O’reilly book and it has a lot of helpful information in it, especially about sensors, he likes forth as a language ( I gave up on that one about 15 years ago, because of lack of documentation) but does do quite a little with NQC, I (...) (25 years ago, 29-Nov-00, to lugnet.robotics)
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| | Re: 2 motors, different speeds
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You can put rotation sensors on each wheel, and then monitor them for changes. If one gets ahead of another, then slow that motor down. This works well, but differences in the wheels cause it to turn slightly. Andy (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Ball-less mice (was :Re: FW: Another DIY sensor)
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(...) I can confirm this, at least for the US market; I just bought the Logitech optical wheel mouse, and it was $30 at Fry's in Campbell, California. (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Lego Mindstorms Europe Demo Tour
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Hi all, (...) no problem with that. BUT ! We took part at the Lego VisionCommand 2000 Competition in Germany. We build an synchrodrive without lego turntables. The Lego chief engineer (don't remember the name, Steven ?????) toke a look at it an was (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Lego Mindstorms Europe Demo Tour
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(...) I suspect the custom pieces that make their way into sets began life as a modification of an existing part. After all, I doubt they wanted to make a custom mold until they were certain it did what they wanted it to. John A. Tamplin (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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| | Re: Lego Mindstorms Europe Demo Tour
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Andy Lynch wrote: >There were also some other bricks modified to press into the touch sensors >on the blue robot. There may have been more, but I stopped looking at that >point. > >Don't get me wrong, the robots were *still* impressive, but I was (...) (25 years ago, 28-Nov-00, to lugnet.robotics)
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