 | | Re: Are 9V trains alive?
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(...) I hope youre right. I would like to see more kind of points, and a return to the first 9v train models (and some 12V models where great too !). I hate those new models (4560/4561 & 4559). I bought some for the pieces but i don't build them. (...) (24 years ago, 5-Dec-00, to lugnet.lego.direct, lugnet.trains)
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| | Re: "No Contact" Homebrew Train Sensor for Mindstorms
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James, Are they directly wired to the RCX or is there a resister in series. BTW where is the web page on the electrical specs of the RCX and home brew sensors? I can't remember. SteveB (...) (24 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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Chris, Another great little sensor for train detection, via Radio Shack, is the little photo sensors they sell. I put them inside of a 2x4 technic plate and then snap them face up on the track. This way they use the omni light from the room as the (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
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| | 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 (...) (24 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) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)
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