thermal kill switch

[Ken Chase]

On Wed, Oct 23, 2002 at 08:35:57AM -0500, Ray Muno's all...

> For another DIY alternative, you could set up room monitoring with 
> a Lego Mindstorms RCX, Lego temperature sensor and Vision Command 
> USB camera.  You could do this for about $250. Everything runs under
> Linux. The camera works with xawtv.  The touch sensors could be used
> to monitor if the door has been opened.  (I am coaching a Lego League
> team right now and I came to the realization that I could do everything
> my expensive netbotz unit does with a fancy toy ;-) 

Hell, we had a project which had a camera on something and we had
to notice a change. Pretty easy - you get a framegrab and you test
certain areas of the frame for specific colours (or colour changes). You
could even watch an analog thermometer this way ;)

/kc

> 
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>  Ray Muno                           http://www.aem.umn.edu/people/staff/muno
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-- 
Ken Chase, math at velocet.ca  *  Velocet Communications Inc.  *  Toronto, CANADA