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	<title>Bluer White &#187; compass</title>
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	<description>Peter&#039;s explorations in technology</description>
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		<title>Compass Integration</title>
		<link>http://www.bluerwhite.org/2010/04/compass-integration/</link>
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		<pubDate>Wed, 14 Apr 2010 15:17:46 +0000</pubDate>
		<dc:creator>peter</dc:creator>
				<category><![CDATA[Robotics]]></category>
		<category><![CDATA[compass]]></category>
		<category><![CDATA[robot]]></category>
		<category><![CDATA[sparkfun]]></category>

		<guid isPermaLink="false">http://www.bluerwhite.org/?p=109</guid>
		<description><![CDATA[After far too much pain and effort, the magnetic compass is integrated with the robot.  Calibration is a bit finicky, and I don&#8217;t think the SYNC signal is implemented properly.  But, the compass works, and the heading matches my mechanical compass.  Here are a few lessons learned: RTFM.  Set the pin data direction (DDRQS) because [...]]]></description>
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