Olin,

  Another approach to prototype area is a daughter board approach.  It 
does not answer you original question of how big but allows the real 
design to progress with the possibility of various daughter boards, some 
even with Analog functions predefined to be developed later.  For my use 
it sure makes life easier when I can just peal off an interface and 
begin a new project without damaging or loosing previous work.  Cuts 
down on the number of mother boards sold but adds greatly to the overall 
flexibility.

Phil

Olin Lathrop wrote:

> That brings up the question of how much prototype area is enough.  I 
> looked
> at the protoboards we have lying around that have been used many times to
> quickly implement temporary PIC projects.  The vast majority of the time,
> these projects fit on one board.  The ones we use have 47 double columns,
> which is a little less than 5 inches wide.  I figured 50 double columns
> would be good enough for most cases, especially considering that the PIC,
> power supply, RS-232 interface, and debug LEDs don't eat into that 
> budget.
> I'm figuring that 10% to 15% of projects are too big for this board is 
> about
> right.  Otherwise it would be too expensive and therefore not 
> applicable at
> the low end.  The question is how big is about right?
>
>
> *****************************************************************
> Embed Inc, embedded system specialists in Littleton Massachusetts
> (978) 742-9014, http://www.embedinc.com


-- 
===========================================
PK Consulting
Phil Keller
Fremont, Ca

Phil@PKConsulting.net



-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist