After two day of working on the touch board (and nearly frying my brain) I’ve just found a very easy way of accessing the touch board from within processing.  Bare conductive created a sketch that turns the touch board into a “HID keyboard” which works like a normal keyboard in that it inputs a limited number of ASCII characters and can be picked up by processing. HMMMMM. the advantage is that one can use all 12 electrodes on the bare conductive board (as opposed to only 8 using GPIO). Still. it was worth learning…..