How about staggering the led's to increase resolution without complicating
mounting etc , you could mount in a diagonal , z or other pattern

0         0
 0         0
0           0
 0           0
0             0
 0             0
0               0
and do timing with a flag or such on the motor


Peter van Hoof
-------------
mailto:pvh@vertonet.com
http://go.to/pvh

Harold wrote

>         I'm helping a friend with a project where we're considering
> writing info on Polaroid film as it is ejected from the camera.  I'm
> thinking a single column of dots LED (maybe 7 to 9 dots) would do the
> trick.  On detecting motor start, we could just flash the LEDs (with a
> PIC, of course) to put the message on the film, just like an old dot
> matrix printer.
>         So... anyone have any "column of dots" LEDs as their favorite?
>
> Harold