December 3, 2012 - 17 went

Bring questions, demos, personal research, etc. to share.

Ed controls the relay connected to the motor with a darlington transistor (shown on left) connected to Pi GPIO pin. Here's a common model of darlington: http://wiki.bildr.org/index.php/TIP120_Darlington_Transistor

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Added by Drew F.
on Dec 5, 2012.
 

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