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Athena Stairwell LED Fixture

Wall mounted stairwell light, specifically designed to meet the regulatory requirements for stairwell lighting and emergency backup lighting. Designed the fixture control system electronics, constant current LED driver, battery charging algorithm, and wrote all firmware. Ported FreeRTOS to the CC430 processor used in the product (port is available on FreeRTOS website in the contributions area). Designed a special RF mesh network specifically for lighting control operating at 433MHz. Brought fixture through UL testing.

http://www.xeleum.com/stairwell-LED