 | | Re: IR proximity detectors
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you won't be able to easily) get distance measures with standard IR comms parts (such as the IS1u60). light travels too fast for the time delay betw xmit and rcv to tell you anything. as a proximity sensor, all you get is a yes/no reading. if you (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: RCX Controlled Air Compressor Tester
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I have some of the original pneumatic cylinders with only one inlet. They have been used for various non Lego uses. While coming back from the dark ages, I have discovered that all three still work once they have been pumped once by had. They can (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: RCX Controlled Air Compressor Tester
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(...) But do you reckon the seals are the same? They may use different material now... BTW, does anyone have any good uses for the old cylinders? They are pretty feeble when pulling (ie relying on "vacuum"), and seem (IMO) to be less well-built than (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: RCX Controlled Air Compressor Tester
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I'm using one of my old cylinders for my cut-off pressure switch. This only uses one of the inlets any way. They are OK for once only trigger events. They can also be used to transfer motion from one place to another by simply connecting two with (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: IR proximity detectors
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(...) [snip] Andrew, Take a peek at (URL) and bonk on the IRPD project. Getting IR demodulators to work reliably is a bit more tricky that just looking for a bounce. I have done a LOT of work in that area and have found that you really need to take (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: NQC 2.0.1, MacNQC 2.0 b2 released
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(...) Dave, Does this one fix the bug when dealing with the Faralon USB to serial port adaptor on the newer Macs? just asking... DLC (26 years ago, 7-Oct-99, to lugnet.robotics.rcx.nqc)
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| | Re: NQC 2.0.1, MacNQC 2.0 b2 released
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(...) Dave, Oops, I meant Keyspan, I see it does, I should have read before I wrote. thanks for the effort! DLC (26 years ago, 7-Oct-99, to lugnet.robotics.rcx.nqc)
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| | Lego for real research
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I was interested to note the sad comments about Lego being just a toy! I am also a professional engineer, of 25 years standing, who enjoys recreational Lego. RIS is one of the more significant steps toward accessible home robotics in recent years. I (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: Lego for real research
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(...) In an important series I took as part of my computer science degree at the University of Utah, we did group projects simulating industry (requirements, design phase, etc....) which turned out products which were robots and scanners and such of (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: Lego for real research
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John Barnes wrote in message <3.0.32.199910071132...server>... (...) John: I am a Mechanical with 11 years, and my wife is an Electrical with 15 years experience. Between our Lego habits, and our poor "doomed to be a nerd" 3-1/2 year old, Lego does (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | 180° IR Eyeball
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Look at www.robotbuilder.com . Go to lego projects and look at the forums. There is a message saying something about a IR Eyeball. It sounds pretty interesting, but his istructions are sort of complicated to understand. If someone could deipher the (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | RE: 180° IR Eyeball
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hmm.. Did you mean (URL) ? -----Original Message----- From: Andy Gombos [mailto:gombos@ne.infi.net] Sent: Thursday, October 07, 1999 10:51 AM To: Lego Mailing List Subject: 180° IR Eyeball Look at www.robotbuilder.com . Go to lego projects and look (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: 180° IR Eyeball
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(...) Yeah. That is what it copied as, and I didn't bother to check it. (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | More IR proximity detectors
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We're trying to use the little radio shack IR transmitter and reciever units to build our own. We're not sure exactly how this will work, but before we get too far, is this a reasonable thing to do? Will these be strong enough to use as proximity (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | RE: 180° IR Eyeball
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I believe there is a problem with the theory used in the article. He talks about using the Radio Shack emitter/detectors to do some 180 deg Detection. He's talking about using multiple emitters and detectors as proximity detectors. (much like using (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: NQC 2.0.1, MacNQC 2.0 b2 released
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The Keyspan adapters are still a bit of a grey area. I've had several reports of them working just fine, and one report of it not working at all. I'm still trying to isolate this problem (which affects NQC and presumably MacNQC). The tweak in MacNQC (...) (26 years ago, 7-Oct-99, to lugnet.robotics.rcx.nqc)
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| | Re: pneumatic and hydraulic cylinders
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Am/Um 15:32 06.10.99 -0700 schrieben Sie: (...) Fischertechnik, too! Have alook at (URL) klick on 'Profi-kits (from 9 years)' Werner (26 years ago, 8-Oct-99, to lugnet.robotics.handyboard)
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| | !!! Laser attachments for Mindstorms !!!
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Hi all, I am selling laser modules for Mindstorms. The modules are two 2x6 lego bricks one on top of the other with a plate on the bottom. It has a wire with a lego power connector on the end attached to one end, and the laser sticks out about 1mm (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: Mindfest
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To my great dismay, I have the opposite problem: a good friend just told me he's getting married that weekend :-(( Suz, isthere a way I can cancel / get any money back?? I have one adult and one child registered (separately). Can I pass it along (...) (26 years ago, 8-Oct-99, to lugnet.robotics)
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| | Re: Mindfest
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(...) Tell your friend that it's too rushed for him to get married and that he really ought to think about what he's getting into before he leaps. Suggest he put it off for a week or so. (26 years ago, 8-Oct-99, to lugnet.robotics)
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