Subject:
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Re: Sensor monitoring
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 22 Jan 1999 03:50:59 GMT
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Original-From:
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Zachary A. Bourk <(zbourk@san.rr)stopspammers(.com)>
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Viewed:
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994 times
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Bryan:
make touch plates. use some heavy metal foil in swaths across each
chute. When the derby car crosses the finish line, it depresses a curved
piece of foil, thus breaking (or making, your choice) an electrical
connection and maybe turning on a light for the first finisher and in
turn disconnecting the battery for the other finisher by depressing the
plate.
_____________________
/ _____ +
/ --- -
________________/____________________|
Track Foil using its
springiness to hold itself
against a contact and keep
the circuit closed
A Battery or some source
of power with which to
light bulbs and the like
"Bible, Bryan" wrote:
>
> I have a project that I am building, it is a finish line monitor for a
> pinewood derby track. What I am doing is putting two light sensors above the
> track pointing down so the ambient light will change when the car crosses
> the finish line. One sensor for each track. I am using NQC to monitor the
> sensors, so my question is can I monitor both the sensors in parallel so
> neither one has an advantage? Which ever sensor changes first then it will
> flag that lane as the winner.
>
> Any ideas?
>
> Thanks,
>
> Bryan Bible ---
> __o --- __o
> Tandem Computers --- _ \<,_
> --- _ \<,_
> Austin Texas --- (*) /
> (*) --- (*) / (*)
> bryan.bible@compaq.com
>
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
--------------------
Zachary Bourk
UCSD, EE
http:\\www.geocities.com\ResearchTriangle\System\4968
--------------------
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Sensor monitoring
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| I have a project that I am building, it is a finish line monitor for a pinewood derby track. What I am doing is putting two light sensors above the track pointing down so the ambient light will change when the car crosses the finish line. One sensor (...) (25 years ago, 20-Jan-99, to lugnet.robotics)
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