Robotics : 13361


Robotics / 13361	13360 \| 13362

Subject:	Re: "No Contact" Homebrew Train Sensor for Mindstorms
Newsgroups:	lugnet.trains, lugnet.robotics
Date:	Tue, 5 Dec 2000 19:24:40 GMT
Viewed:	61 times

In lugnet.trains, Chris Phillips writes: > As has already been reported by others, I built an automated railroad > crossing for the NELUG train display at last weekend's Greenberg show. I > wanted to take a moment to describe the "homebrew" sensor that I used to > detect an approaching train so that others might benefit in their own layouts. I might just add that while this was a bit over my head it work extremely well and the sensor itself was very small and unobtrusive. It was a non-LEGO solution but I loved it and recommend it. I think with some reworking it may even be possible to hide the sensor in/under one of the ties themselves. Eric Kingsley The New England LEGO Users Group http://www.nelug.org/

Message has 1 Reply:

		Re: "No Contact" Homebrew Train Sensor for Mindstorms
(...) Is there a photo that clearly shows the sensor in a fairly tight closeup so that it can be judged how obtrusive/invisible it is? I skimmed through many of the photos posted by you, Dave, and Tim but did not see one, although I may have missed (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)

Message is in Reply To:

		"No Contact" Homebrew Train Sensor for Mindstorms
As has already been reported by others, I built an automated railroad crossing for the NELUG train display at last weekend's Greenberg show. I wanted to take a moment to describe the "homebrew" sensor that I used to detect an approaching train so (...) (24 years ago, 5-Dec-00, to lugnet.trains, lugnet.robotics)

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