Lots of progress withe the Wave Shield! Thanks to the tip posted in the adafruit forums, we managed to reduce our Wave Shield/Arduino Pro sandwich to 1.5cm in total, including all the sticky-out components. Behold:
Note that we also removed the headphone jack, as we’ll wire this permanently to the dress and we’ve replaced the volume control potentiometer with a connector wire because we’ll be controlling the volume in the software.
The code is done, and we’ll post it online later once it’s cleaned up a bit, but meanwhile, here are a few handy references for programming the Wave Shield:
Lace Sensor Project 