Not at all hard to chord through infact the way the Twiddler driver for Linux works
that is what is being done already. the drive watches as the total value of the
pressed keys goes up, when it drops if uses the highest value to lookup the key that
represeted by the last pattern. that is why you can chord keys with more than one
commen button by only changing the buttons that have to be changed and leaving the
rest pressed. the driver would in fact be easer to code.
Have fun.
Mark Willis wrote:
> True (I've done that, years ago, but forgot the details!) - Good,
> sneaky thought! <G> I guess it'd be kinda tough to chord though, which
> I hadn't been really thinking of; With a common ground, chording WOULD
> still be possible...
>
> Another thought (complicated but possible) that had occured to me is
> to use a PIC (16C84 or the like) as a local controller, reporting
> serially back to the CPU; one little piece of audio coaxial cable up
> your arm to pass power up to the PIC & pass (Capacitor coupled?) data
> back down to the CPU. A little more high-tech than ribbon cable, but
> it's a LOT easier to protect/replace audio co-ax than ribbon cables &
> it'd be more comfortable & much less obtrusive IMHO... Thought of Fiber
> Optics, but no power that way for the PIC (they CAN run "forever" off a
> small battery, though...)
>
> With ANY of these, of course, going through Airport Security is
> something that ought to be "FUN!", exciting, and stressy, so I'd do it
> first when I didn't have a plane to catch immediately <G> ("Look out,
> Fred, he has WIRES running up both arms from his hands, and batteries
> and a big lump on his belt! Must be a bomb!")
>
> Mark Willis
> 
>
> Charles Puffer wrote:
> >
> > You could do it with 2 wirers by using a powers of 2 setped set of resisters and
> > a d2a. You might have a noize problem from time to time but I dout it.
> >
> > Charles Puffer
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