use 20 in a 5 by 4 matrix and make a 20 pixel "8 bit Art beamer"
I actually considered doing that with 8 by 8 cheap lasers from dealextreme, until i started thinking about how to align them precisely enough to be usefull 
use 20 in a 5 by 4 matrix and make a 20 pixel "8 bit Art beamer"
I actually considered doing that with 8 by 8 cheap lasers from dealextreme, until i started thinking about how to align them precisely enough to be usefull