[sdiy] Keyboard Encoder Experiments...

[Ben Stuyts]

Hi Jim,

On 11 Feb 2008, at 20:50, Jim Patchell wrote:

> http://www.noniandjim.com/Jim/KeyboardEncoder/KeyboardEncoder.html

Looks great! And if you go away from 'conventional' keys, you could  
even build something lake the Haken Continuum keyboard <http://www.hakenaudio.com/Continuum/ 
 >. I think this <http://www.google.com/patents?vid=USPAT6703552> is  
the patent.

I've looked a bit at (commercial) LVDT's for the company I work for,  
but cost was, as you said, always prohibitive. But wouldn't this need  
a lot of electronics? AD has some LVDT amplifiers, but these are  
expensive (> $15) too.

How about hall-effect sensors?

With kind regards,
Ben