 | | reed switch w/2^n series resister
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Chris If I understand correctly you can add a series resister to each reed switch using the formula r=2^n*R. Where n is the number of each switch (1,2,3...) and R is some resistence value that is friendly to the RCX. This way you can add several (...) (25 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
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| | Re: "No Contact" Homebrew Train Sensor for Mindstorms
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(...) This is a great idea. I will talk to Chris about it and we can try and document it with pictures on the NELUG site. Eric Kingsley The New England LEGO Users Group (URL) (25 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
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| | Re: "No Contact" Homebrew Train Sensor for Mindstorms
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(...) I know I didn't get a close up because my camera stinks for close ups. I think Chris may have gotten some but he hasn't uploaded his pic's just yet. If we don't have one now, we are having a meeting in a couple weeks and we will make sure to (...) (25 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics, lugnet.org.us.nelug)
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| | Re: "No Contact" Homebrew Train Sensor for Mindstorms
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(...) 1) take a section of straight track. 2) take a light gray 2x4 plate and place it so that it spans the 2-stud gap between two of the ties. 3) imagine a very thin silver piece lying on that. That's it. Most of the people I talked to about it (...) (25 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
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| | Re: "No Contact" Homebrew Train Sensor for Mindstorms
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Wonderful info! If I could be so bold... On the PNLTC web site we have articles that discuss various building and other techniques. This reed switch discussion and design review would make a great article (with some pics & schematics) for NELUG! (...) (25 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
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