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Topic: Detecting if spotlights are removed from 4wd. (Read 613 times) previous topic - next topic


As Peter says, you dont actually need an Arduino here, something like below ( but with a power FET instead of a transistor)  would work

With my mobile phone I can call people and talk to them -  how smart can you get ?


Cheers all,

The arduino may seem like over-kill but the system also needs logic like:
-turn off after 30 seconds so as not to drain the battery or annoy the neighborhood after the spotties are long gone.
-keep alarm going for 30 seconds if spotttie is immediately plugged in.
And besides, once I wire in an arduino, I have a platform ready for other car related projects.

I appreciate the diagram heaps boffin1; I am starting to get an idea of how to approach the problem now. For some reason I hit a massive mental blank approaching this problem and this stream of ideas has cleared that, so again thanks :)

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