Hello, I'm a complete newbie to Arduino and electronics, and I have a project that I would like to make. I've not done any electronics since 1994 when I covered some basics for physics A-Level. So I bought and read a 'dummies' guide and did some revision. What I would like to do is have an Arduino…

Sensing an external voltage which switches between 12V and 0V

anon89944923 May 21, 2012, 3:21pm 5

Great. Thanks for all the help.

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