AVR-Chat

At 10:30 AM 25/01/2013, you wrote:
>I know I could detect the VCC drop with some extra external hardware to
>generate an interrupt

That's about the only way you can do it, once the power is low enough
to trigger the BOD it's too late to do anything.

You may be able to use the Analog comparator pins, if not used, to detect
an impending power failure, but you will still need external parts.

Regards

John Samperi

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