[Paul Skinner] sent in an interesting project that he has been working on. The goal is to use biofeedback (heart rate, skin temperature) for sound control. The Playstation controller offers multiple analog inputs so Paul decided to modify one to use as an analog to digital converter. Before tearing the controller down he connected the controller to Max/MSP to make sure he could read the inputs. The majority of the project was spent building amplifiers for the skin temperature and other sensors. Once the amplifier circuit was constructed Paul built several Max/MSP patches to use the data.