Ruby currently works with:
Electronic Displays 2-line, 21-character display
Polycomp 1-line, 16-character display
Polycomp 2-line, 16-character display
Polycomp 4-line, 16-character display
Spectrum 2-line, 16-character display
The Polycomp interface is very generic, and can probably provide a basic display
on any wallboard.
We can also write interfaces to other wallboards. Please contact us if you want
a new interface written.