'Solus Chess' PC Reed Board Berger a software engineer from Spain has written a program for the Teensy USB Development Board named 'Solus Chess' that enables you to build your own auto sensory reed chess board similar to mine in the photo.
Not only has Berger written this program he has also produced a excellent web site that gives you an easy step-by-step guide on how to build a reed and tactile momentary chess board.
The new 'Solus Chess' software is available free from Berger's web site that can be found at the following link.
Please have a look as I'm sure you will find it very interesting.
https://sites.google.com/site/bergersprojects/reedcb