Subject:
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Re: Grade Crossing Signal Thingy...
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Newsgroups:
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lugnet.trains, lugnet.robotics
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Date:
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Fri, 17 Dec 2004 14:38:49 GMT
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Viewed:
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166 times
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> For bidirectional operation, you will need two sensors, one for each direction
> of travel (so the gate has time to go down BEFORE the train hits the crossing!)
>
> Xposted to lugnet.robotics as there are a lot of resources there as well.
>
> Hope that helps.
Check the previous posts on <http://news.lugnet.com/trains/?n=23799>
the motorized cows.
These use optical sensors to trigger cow head moooovement...I'm sure
they could activate a level crossing using the same RCX optical
detection scheme.
-Rob A.
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Message is in Reply To:
 | | Re: Grade Crossing Signal Thingy...
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| (...) You'll need more than a program, you'll need to make sensors of some sort, as sensors that detect magnets are not on offer from LEGO. Chris Phillips made some (reedswitch based, I think) sensors, and documented what he did. it requires some (...) (20 years ago, 16-Dec-04, to lugnet.trains, lugnet.robotics)
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