STEIM in Amsterdam is an arts organisation that has been hacking music and technology since the late 1960's. In June they are running a 3 day Isadora workshop intensive with Pro-Isadora user jamie griffiths (aka _primaldivine_ on the izzy forum).

The Isadora intensive is followed by an optional two day wireless sensor workshop with Marije Baalman, the designer of the Sense/Stage sensor system, and STEIM's resident head technician and hardware designer.  The Sense/Stage system takes advantage of some Arduino hardwares, but Marije has developed custom software.  

Here is the link http://steim.org/2013/04/registrations-open-interactive-technology-workshops/