Subject:
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Train sensors
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 28 Aug 2003 00:51:36 GMT
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Viewed:
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986 times
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Has anybody come across a consistent way of sensing the presence of a LEGO train
on a specific section of track? I was just wondering, cos I came across
this site and thought it’d be fairly easy to
create controllers like these with RCXs (using LDCC lib) if there was a way to
sense the position of trains...
ROSCO
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Message has 2 Replies:
 | | Re: Train sensors
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| Reed switches have been used. One discussion: (URL) a discussion on various applications: (...) (21 years ago, 28-Aug-03, to lugnet.trains)
| | | Re: Train sensors
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| (...) there is one trick you can use to get this to work reliably. The thing you need is to use carbon spray on the wheels so that a resistor of a few M-ohms is created. This will draw enough current for the detector circuit to work. product is (...) (21 years ago, 28-Aug-03, to lugnet.trains)
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