Also, how does a garage door detect that there is something in the way when closing?
One of my hobbies is radio-controlled semi-trucks
Yes I guess I should have mentioned they are 1:14 scale. Here's a link:
Expensive but really fun to build and play with.
I figure I could use a 'pressure' switch that makes the gate go up when the truck drives on it
Here is my latest thinking: The guard house will have some sort of base (like plywood or MDF). What if I drilled a hole in this in the middle of the roadway the right size for a photoresistor facing up. Would a truck driving over it change the photoresistor's value enough to be detected? I could use 3 of them as Lurch suggested (1 before, 1 at or close to the gate, 1 after) Any thoughts?
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