Pure Data and GridFlow

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.
 

Gem pix into GridFlow

 
GridFlow camera into Gem texture

 
Select webcam

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.