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Attention everyone trying or have gotten the USB IR tower to work under windows running legOS. I have some patches from at certain Jin Sato that are supposed to allow one to upload programs and the legOS kernel via the USB IR tower. First off I am (...) (24 years ago, 7-Dec-01, to lugnet.robotics.rcx.legos)
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| | University use of JCX Java and Technics/Mindstorms hardware
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I'm on the way up to the U of Utah for the final presentations today. Some are pretty fascinating - check out the team project links at (URL) the Mindbrew golf bot (video) and the Robotechtronix voice control system... Complete documentation, (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
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| | Re: rcx power circuit
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(...) It's the delay you get when changing batteries so you don't lose your firmware... (the 1000uF Cap) the ring should be for filtering power. Dean (24 years ago, 7-Dec-01, to lugnet.robotics)
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| | Re: rcx power circuit
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On Thu, 2001-12-06 at 12:15, Mathias Uhr wrote: <snip> (...) This is more likely to act as a buffer to prevent the voltage from sagging on the CPU when you're running the motors. This is always a pronlem when motors and CPU are run off a common (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
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| | Re: Rotation sensor woes
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I've had the same problem. I guess there's too much error tolerance on the production line. -- Greg Frazier (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
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| | RE: Magnetic Levitator
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We tried using the Handyboard (which is faster than RCX) and it could not do it. I think the RCX is not fast enough for UNSATBLE control systems such as magnetic levitation, etc. A while back, I proposed the inverted pendulum problem as a challenge, (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
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| | Re: Magnetic Levitator
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(...) I think that it would be possible to use an RCX. I used four op amps in my circuit; the first amplifies the signal coming from the phototransistor, the second differentiates the signal, the third takes the difference of the proportional and (...) (24 years ago, 7-Dec-01, to lugnet.build, lugnet.general, lugnet.robotics)
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| | Re: rcx power circuit
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(...) Did you check it with a load (such as the RCX) on it? Some power supplies can only regulate the voltage when there is some kind of load. If you just measure the voltage with nothing except a meter on the end, it may well be insanely high but (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
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| | Re: Rotation sensor woes
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"Steve Baker" <lego-robotics@crynwr.com> wrote in message news:3C0F6DC6.704B7A...ail.net... (...) [snip] (...) [snip] Thanks for the advice Steve and everyone else. For now it'll be attached using axles and 1x2 bricks with axle holes to give me some (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
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| | Re: rcx 2.0 without power plug !?
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(...) Actually, it was removed in 1.5 - although *some* 1.0 RCX's were shipped in RIS 1.5 sets. That's how I got my RCX 1.0 so I know that's true. (...) No - not unless it's a *VERY* early 1.5. (...) Yes - you definitely can. So far, all versions of (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
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