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See also a similar experiment which uses the [[Activities/TurtleBots#Buti.C3.A1|USB4Butia]] board (in Spanish) http://youtu.be/eewFtOHX5-Q and http://youtu.be/KmNwC1qBhtA
 
See also a similar experiment which uses the [[Activities/TurtleBots#Buti.C3.A1|USB4Butia]] board (in Spanish) http://youtu.be/eewFtOHX5-Q and http://youtu.be/KmNwC1qBhtA
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==Voltage-current relationship==
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See  http://youtu.be/37vJEUr5nRI and http://www.youtube.com/watch?v=_iSXHsGvLaY (in Spanish) for experiments plotting linear and nonlinear V-I relationships using the [[Activities/TurtleBots#Buti.C3.A1|USB4Butia]] board. This experiment should be possible using just the XO-1.5 which has stereo input.
    
==The XO as an audio amplifier==
 
==The XO as an audio amplifier==
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