This is the initial experiment with the use of GridFlow in PureData. I try to integrate the webcam image first from GridFlow to Pd with Gem (a graphical library for PureData) and then the other way round.
PureData
TuioPad and Pure Data
It is a very simple experiment with the free iPhone app tuiopad.
The app routes the multitouch information from the iPhone to a host through the open sound control communication protocol. I send the TUIO multitouch signals to a host running a Pure Data patch to display the co-ordinate in a GEM window.
The Pd patch
There are other commercial products with more sophisticated features: OSCemote and TouchOSC.
It is a floating ball
It is a proof of concept work. I use a PureData patch to control an Arduino board with PWM output to drive a small computer fan. The load is managed by a ULN2803A IC. The blowing power is not linearly proportional to the numerical value sent from PureData. It is quite difficult to sustain a floating position in the middle of the air.
