[Autopilot] i2c article

[Trammell H. <hu...@sw...>]

I just finished reading Dafydd Walters' article on i2c:

	http://www.mobilerobotics.org/robot/index.php?option=content&task=view&id=123&Itemid=

It inspired me to try to use the built in support in the Mega AVRs
since we are all out of expansion ports.  I'm going to see if I can
easily build an i2c magnetometer interface, which would free up
six digital IO lines.

Trammell
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