AVR-Chat

On Wed, 2005-08-31 at 10:36 -0700, Dave Hylands wrote:
> >   Perhaps I am missing something, here.  AVR processors have
> selectable
> > pull UP resisotrs on each and every digital I/O pin.  Since a low
> > voltage is a logic 1, you don't need "pull down" resistors on AVR
> > inputs.
> Ummm - a low voltage (0v) is a logic zero. A high voltage (5v) is a
> logic one.

   Not according to AVR data sheets, it's not.