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	<title>Robotics Blog &#187; multiplexing</title>
	<link>http://roboticsblog.org</link>
	<description>Robot and Electronics News Weblog</description>
	<lastBuildDate>Sat, 10 Apr 2010 01:31:53 +0000</lastBuildDate>
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		<title>Tri-Color Animated LED Cube Lights Up the Night</title>
		<description><![CDATA[Tri-Color Animated LED Cube Lights Up the Night:  Using bi-color LEDs, a little multiplexing, and a microcontroller, green, orange or yellow can be light up individually at any of the 27 locations on the cube. Each of the bi-color LED's physically contain two LEDs inside of them with a common cathode. If both sides of the LED are on, the LED appears to glow yellow, making a third color.


Related posts:<ol><li><a href='http://roboticsblog.org/2009/robotics-videos/pac-man-roomba-has-448-leds/' rel='bookmark' title='Permanent Link: Pac-Man Roomba has 448 LEDs'>Pac-Man Roomba has 448 LEDs</a></li><li><a href='http://roboticsblog.org/2009/electronics/resistor-color-code-tool-leaves-no-excuse-for-mix-ups/' rel='bookmark' title='Permanent Link: Resistor Color Code Tool Leaves No Excuse For Mix-Ups'>Resistor Color Code Tool Leaves No Excuse For Mix-Ups</a></li><li><a href='http://roboticsblog.org/2009/robotics-videos/60ft-gundam-japanese-robot-statue-update-its-animated/' rel='bookmark' title='Permanent Link: 60ft Gundam Japanese Robot Statue Update &#8211; It&#8217;s Animated'>60ft Gundam Japanese Robot Statue Update &#8211; It&#8217;s Animated</a></li></ol>]]></description>
		<link>http://roboticsblog.org/2009/electronics/tri-color-animated-led-cube-lights-up-the-night/</link>
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