This article mentions using PWM for dimming of LEDs and some readers may think that they could use the same technique to do colour control. But there has been a long standing issue with Colour Kinetics (now part of Philips) having patents on such applications, despite PWM being used for years prior to the patent.
Those interested can find a summary at http://www.ledsmagazine.com/news/5/3/7 and http://forums.auschristmaslighting.com/index.php?topic=894.0
NASA's Orion Flight Software Production Systems Manager Darrel G. Raines joins Planet Analog Editor Steve Taranovich and Embedded.com Editor Max Maxfield to talk about embedded flight software used in Orion Spacecraft, part of NASA's Mars mission. Live radio show and live chat. Get your questions ready.
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