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Re: Twiddler, USB and wearables

From: Alexander Feinman <>
Date: Fri, 22 May 1998 17:21:42 -0400 (EDT)

> Would it be possible to configure a secondary Twiddler to work in
> conjunction with the primary Twiddler.  Possible configurations could be
> that each Twiddler could maintain its original functionality (right hand
> enters "T" while the left hand enters "h"), or they could be configured to
> work together (i.e. two Twiddlers allowing for chorded input)  I know this
> would require two hands, but if someone is interested in coding, what do
> they need the other hand for?

This is entirely possible, provided a computer has two free serial ports.
It just makes the driver a bit more complicated. If you wanted acquire the
second Twiddler only when you wanted to sit down to some serious typing,
as someone mentioned, you'd have to figure out if you wanted the second
twiddler to be completely redundant, or have some sort of mode button on
the second Twiddler that puts both in a two-fisted mode.

Since the Twiddler just puts out keycodes, you could write a driver that
accepted chords across Twiddlers, i.e., L00R with the left hand and RRRR
with the right - this effectively squares the number of available combos,
which is certainly more than my poor brain can handle (what's that, up
around 9 million?).

What is completely ambiguous is what the second mouse input does, if
anything. Then again, on implementations like the Pilot driver, this is
ignored anyway...

Alex Feinman


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