[Coco] TRS-80 X-Pad

[Willard Goosey]

On Sat, May 25, 2013 at 12:16:47PM -0400, Bill Pierce wrote:


> the pen and pad are electro magnetic, the pen creating magnetic
> field and the pad's "sensors" sending back the location of the
> pen. The pad can sense when the pen is "near" but not "on" the
> drawing surface. So I would think the pad has a magnetic grid of
> sorts that is equivilent to the resolution and could not be
> modified.

More or less.  BTW the pen uses a Fisher Space Pen refill.  (All metal
so the signal from the pen can go through it.)

Willard
-- 
Willard Goosey  goosey at sdc.org
Socorro, New Mexico, USA
I search my heart and find Cimmeria, land of Darkness and the Night.
  -- R.E. Howard