A Charybdis open source. Githubon elerheto a BOM, abban meg a sensor PCB, ami egy PMW3360-at hasznal.

A PMW3901 felhasznalasi terulete egy kicsit mas.
"It uses a tracking sensor that is similar to what you would find in a computer mouse, but adapted to work between 80 mm and infinity."
Szoval ha a trackball-t a szenzortol minimum 8 centire forgatnad, akkor jo lehet. Amugy meg a PMW33xx vonalon nezelodnek.