[sdiy] Re: DIY-DSP card (was: "Wakeman (sigh)" )

[Paul Maddox]

Tim,

> Yeah, this gizmo was described to me once. I wonder if
> it could be made with magnets and hall-effect sensors?
> It looks like a cool i/f.

Probably not, the good thing about this is that each 'puck' uses a different
frequency (care of the LC arrangement), so each puck has a unique 'ID' in
effect, allowing the software to  detect where each one is.

Paul