http://log.liminastudio.com/itp/breath-pong-development Research & Development at Limina.Studio Sun, 05 Feb 2012 14:48:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://log.liminastudio.com/itp/breath-pong-development/comment-page-1#comment-3980 Networked Objects » Blog Archive » Ted’s “Breath Pong” controller development Mon, 09 Feb 2009 23:57:23 +0000 http://log.liminastudio.com/?p=166#comment-3980 [...] For my networked Pong controller, I am attempting to create a device that senses inhalation and exhalation as methods of moving the Pong paddle left and right.  To do this, I am using a simple fan to generate an induction current.  The two conductors of the fan motor are connected to two Arduino analog inputs with 10k-ohm resistors bridging them to ground to create voltage dividers.  In this sense the motor acts exactly like any typical resistance-based sensor, like a flex sensor, except that the motor is not connected to any voltage source, as it generates its own current.This works surprisingly well!  I just have to set a small threshold to ignore the small amount of noise generated if you touch the motor or an EM source is moved near it.  The next step is to figure out a reliable way to move the fan with your breath; I’m going to try a computer fan with a blowing/sucking tube (har!) attached to it.  It’s an unusual kind of action to try to sense.Video here: http://vimeo.com/3152151Images here: http://log.liminastudio.com/?p=166 —Tedb0t [...] [...] For my networked Pong controller, I am attempting to create a device that senses inhalation and exhalation as methods of moving the Pong paddle left and right.  To do this, I am using a simple fan to generate an induction current.  The two conductors of the fan motor are connected to two Arduino analog inputs with 10k-ohm resistors bridging them to ground to create voltage dividers.  In this sense the motor acts exactly like any typical resistance-based sensor, like a flex sensor, except that the motor is not connected to any voltage source, as it generates its own current.This works surprisingly well!  I just have to set a small threshold to ignore the small amount of noise generated if you touch the motor or an EM source is moved near it.  The next step is to figure out a reliable way to move the fan with your breath; I’m going to try a computer fan with a blowing/sucking tube (har!) attached to it.  It’s an unusual kind of action to try to sense.Video here: http://vimeo.com/3152151Images here: http://log.liminastudio.com/?p=166 —Tedb0t [...]

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