Subject:
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Re: Mindstorms Automatic Train Control Questions
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Newsgroups:
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lugnet.trains, lugnet.robotics
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Date:
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Thu, 1 Nov 2001 09:59:33 GMT
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Viewed:
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1980 times
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In lugnet.trains, Dean Husby writes:
> I used Reed sensors in the last train show the VLC did. They worked
> well.
>
> I had 3 of them in parallel for the trolley track. It would move between
> 3 stations and stop at each one for a time.
> http://www.brickshelf.com/gallery/TFM/ToyTrainShow2001/Mpegs/trolleyclosecall.mpg
Very neat. I use a reed switch wrapped in heat-shrink tubing, epoxyed to a
2x6 plate with the middle 8 studs removed, and pressed onto the track
lengthwise. Then, an RCX hidden in a signal box (switching house, or
whatever you call them in the US) controlled a barrier crossing.
Hands up all those at Thames Valley Lego Fest who were waving their hands
over the sensor, or poking it to try and get a response... :-)
Jason J Railton
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