LEGO SYSTEM Trains : 3450


Trains / 3450	3449 \| 3451

Subject:	Design for 9v Train Light Sensor
Newsgroups:	lugnet.trains, lugnet.robotics
Date:	Mon, 3 Jan 2000 05:49:52 GMT
Viewed:	1561 times

I've put up a design for a sensor which can identify and count traincars at http://www.ben.com/LEGO/rcx/train-sensor.html The web page is long enough so I won't repeat it all here... --Ben

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