I have an input coming from a car. It goes from 0V to roughly 18V at max. I was hoping to build a simple voltage divider using about 500k and 2M (arduino seeing the voltage across the 500k which is about 3.7V at max which would be plenty for analog reading). But there is one problem. There is roughl…

Is arduino equiped with AC protection?

system December 30, 2012, 8:29pm 6

Is arduino equiped with AC protection?

Yes: the pins get burned up, protecting the core.

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