> Is there a reason for using a resonator instead of a crystal other than
> cost?  If not, then the extra $.20 or so seems irrelevant for a one-off
> unit, especially when your buying a ready-made prototype board.  If there
is
> a reason for wanting a resonator regardless of cost, what would be
required
> to support that?  The caps can be lifted easily enough, and the board
comes
> without crystals so those pads are available.  Would it be good enough to
> put a ground pad between the two pads for the thru hole crystal?
>
>

I thought the 'normal' justification for a resonator over a crystal is the
shock resistance and cost. But in this case since the added cost is only an
extra hole, I don't see a reason to no preserve the option.

I'm also wondering why you chose to make the power supply this complicated.
Seems most applications can get by with a 7805 and a couple caps - maybe a
couple diodes for protection. So I'm wondering what lead you to that design?
How about cost?

-Denny

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