Homebrew PCBs

> OK,
> 
> I have not used Eagle, but have recently downloaded it for some 
> attempt at learning it.
> 
> Can you tell me how to open the file ?
> 
> Eagle does not allow browsing to other folders and the 
extension .sch 
> is associated with another PCB program I use.
> 
> Do I just copy it to a new folder somewhere ?
> 
> Dave


FOUND IT !

Creating a new folder in Explorer and pasting the file into it put it 
on the navigation window.


Good thing you fixed the crystal.  That was required to make it work 
and too simple of a mistake.

A question is why the diode on MCLR ?


Another question is why all the shift registers to only light a few 
LED's ?  And why the transistor on the LED's ?  The shift register 
can handle 20mA in a drain mode, and each LED can be run at 10mA so 
there are lots of unneeded parts.  OR... more likely many more parts 
that are not shown.   

It seems the PIC could easily handle the 6 LED's shown, more easily 
than the way shown.  Really makes me think things are not shown.

I would think the LED's are 'typical' for stings of 8 or so, like bar 
graphs.


Volume, antenna strneght, signal strength.... ?

Very interesting.

Dave