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When using LegOS (a most excellent creation, btw) is it possible to store a value and use it in different programs? Actually, I'm sure it is, but how would someone do it? I want to have one program to configure my light sensor, and use those values (...) (24 years ago, 20-Dec-01, to lugnet.robotics.rcx.legos)
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| | Re: Home-made One-way valve
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(...) a (...) tanks (...) own (...) So, define vacuum as an area of lower pressure than the surrounding environment. I think that satisfies most if not all of your requirements, and is what most people seem to think of when they mention vacuum. Andy (24 years ago, 20-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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In lugnet.robotics, sjbaker1@airmail.net writes: [snipped rant about light-bulbs] (...) Well, since a perfect vacuum has never (AFAIK) been shown to exist anyware (even in space), I guess you're right. However a partial vacuum is easy to "store" and (...) (24 years ago, 20-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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(...) Argh! <rant> It's been a long time since domestic lightbulbs were even partially evacuated - these days they are filled with some kind of relatively inert gas. Back in the 1940's and 50's they were partially evacuated - and on some old movies (...) (24 years ago, 20-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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c s soh <cssoh@singnet.com.sg> wrote in message news:3C213F4F.CC899E....com.sg... (...) and (...) How about a vacuum flask (thermos), domestic lightbulb, or even CRT (cathode ray tube such) as in your TV or monitor. These all rely on a stored (...) (24 years ago, 20-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | Re: Home-made One-way valve
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(...) I think the reason for that is simply that you can't store very much "vacuum" in a tank. While you can pressurize a tank to several hundred PSI or better, for vacuum you're limited to completely (well, OK, nearly completely) evacuating it--a (...) (24 years ago, 20-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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(...) Somehow I'm a bit queasy about this business of "storing vacuum" in a tank. So I checked with the local supplier of industrial gases. If you need a tank of compressed air, that's no problem. But a tankful of vacuum, er that's not listed in the (...) (24 years ago, 20-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | Re: Contests?
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I'm working on a new web site which I hope to launch over the holidays, but I've got a couple of January events listed on the calendar already. It's basically non-functional now, so if you know of an event, drop me an email or post it here and I'll (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Contests?
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Hi. Are there any robot contests other than the Trinity College Fire Fighting Robot Constest being held in 2002? Best Wishes Barbara Nostrand (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Proximity sensors.
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see (URL) capteur section ----- Original Message ----- From: "Ismael Salvador" <issalig@doctor.upv.es> To: <lego-robotics@crynwr.com> Sent: Wednesday, December 19, 2001 6:26 PM Subject: Proximity sensors. (...) building (...) cheap (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Chemical Sensors
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You can interface pH and other sensors with Mindstorms using logIT, look at (URL) ColePalmer (mentioned below) it is not clear to me what they offer in terms of Mindstorms compatible sensors? - Thomas Hoeg-Jensen (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Chemical Sensors
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(...) J. David Malinsky University of Calgary Department of Chemistry Phone (403) 220-5371 Fax (403) 289-9488 mailto:malinsky@ucalgary.ca (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Chemical Sensors
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Does anyone know of sources for chemical sensors. Things that can report ph, oxidation, etc? Robb, or bid at (URL) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Proximity sensors.
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(...) building (...) For cheapness the following probably can't be beat: (URL) ($free) otherwise you can buy IR proximity sensors based on reflected IR: (URL) ($40) (URL) ($34) (URL) ($14) or a sonar range sensor: (URL) ($80) or a brick that (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Proximity sensors.
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I have done a few proximity sensors using the light sensor and the RCX's messaging. Examples are here: (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Proximity sensors.
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Hi all. I want play with my RCX this Christmas so I have thought about building a proximity sensor. So guys, do you have any ideas?. I prefer simple and cheap solutions. Bye. (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Serial Port (IR Tower) communication procedures with LegOs
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If you mean standard firmware message, I think you should use my remote control patch for legOS025, you can find them at (URL) luck! Zhengrong (...) (24 years ago, 19-Dec-01, to lugnet.robotics, lugnet.robotics.rcx.legos)
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| | Re: Mario's new book...
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(Posted this to .books too, but I don't know if anyone bothers looking there any more ...) This book is available (in stock!) from Computer Manuals at (URL) . £19.95, free UK p&p until 24th December, and if you review any books they're giving away a (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Serial Port (IR Tower) communication procedures with LegOs
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Hi, We need to send and receive messages between a PC and a RCX with legOs, but we can't find the serial communication procedures in the code or libraries. Does anybody can help us??? Thanks in advance, Mauro + Prof. Dr. Mauro Roisenberg Dept. de (...) (24 years ago, 19-Dec-01, to lugnet.robotics)
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| | Re: Shuting up the RCX
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It is easier to use legOS to instead NQC, and it is more power, very easy to be used. Zhengrong (...) (24 years ago, 19-Dec-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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