Subject:
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Re: GMLTC Update
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Newsgroups:
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lugnet.trains
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Date:
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Mon, 22 Jul 2002 12:54:06 GMT
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Viewed:
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839 times
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In lugnet.trains, John Gerlach writes:
> In lugnet.trains, John Kelly III writes:
> > James-
> >
> > Mr. Gerlach is quite clever. He has the loop powered in three sections with
> > light sensors to grab the trolley location for the RCX. It was working
> > alright at the Roundhouse, but it had some trouble in the direct light of
> > the Fargo show. The light sensors were just overwhelmed.
>
>
> I need to invest in some reed sensors to detect the magnets as they go by,
> the light sensors are just too unreliable under the different lighting
> conditions. Anyone know a good place to purchase some RCX-compatible reed
> sensors?
John Barnes/HiTechnic? He was showing off a lot of his wares at BF.
http://www.hitechnic.com/
Note that his "train sensor" is a light sensor, basically, but set to point
directly up so that train shadow activates it. It's only a plate and a tile
high though.
Also Chris Phillips has made a number of these for NELUG...
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Message has 1 Reply:
 | | Re: GMLTC Update
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| (...) There could be a problem using these on that return loop. It's all curves, and this sensor looks like it has a rectangular 2x4 plate between the sleepers so it'll only fit on straights. Perhaps there's time for a quick design change John? (...) (22 years ago, 22-Jul-02, to lugnet.trains)
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Message is in Reply To:
| | Re: GMLTC Update
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| (...) I need to invest in some reed sensors to detect the magnets as they go by, the light sensors are just too unreliable under the different lighting conditions. Anyone know a good place to purchase some RCX-compatible reed sensors? "Clever"... (...) (22 years ago, 19-Jul-02, to lugnet.trains)
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