On Thu, Jun 9, 2011 at 10:36 PM, IVP <joecolquitt@clear.net.nz> wrote:

> As a precaution I'd put resistors in series with the pushbuttons. If
> the pins ever happen to go high output, grounding could take them
> out
>

The switch contacts can handle a lot more than 20mA. What could happen?
--=20
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