Subject:
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Re: Magnetic field activated switch
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 1 Apr 2001 20:43:21 GMT
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Viewed:
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435 times
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Jason J. Railton wrote in message ...
> Exactly what part of a _plastic_ train are we hoping to detect here anyway?
How about the magnetic coupler on the front of the loco and between the wagons.
I have found that the coupler going past has enough strength to attract a magnet
under the track.
Allan J Smith
--
My LEGO creations site "Allanton NZ" is at
http://homepages.paradise.net.nz/~allanj/
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Message has 1 Reply:
 | | Re: Magnetic field activated switch
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| (...) Good point! So, a simple reed switch on the sleeper should do the trick. The other thought I had was to isolate a short (30mm) section of one side of the track, and bridge over it with a wire to power up both sides. This isn't long enough a (...) (23 years ago, 2-Apr-01, to lugnet.trains)
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Message is in Reply To:
| | Re: Magnetic field activated switch
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| (...) Exactly what part of a _plastic_ train are we hoping to detect here anyway? Are these things sensitive enough to detect the wheels and sparse metallic components of a train motor, encased in ABS, as it goes past? Jason J Railton (23 years ago, 1-Apr-01, to lugnet.trains)
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