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Re: Re: Driveway sensors
ian.bird@xxxxxxx wrote:
>
> > May be beam sensors are the way to go...
>
> I read an article on making your own beam 'break' detector recently
where
> it worked on a reflection basis just like the hand dryers in toilets.
I
> don't remember the range it worked over but it was adjustable. Just
> another
> option? It would mean just one unit not two as a conventional beam
break
> and may be easier to isolate from the effects of sunlight.
You could adapt the output from one of those ultrasonic (I assume)
"traffic light" garage parking sensors...
(When the red light is "on", it automatically dials your building
insurer and files a claim for a new garden wall... ;-)
Jim
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