Nikon CLS/AWL hacks
- http://dptnt.com/2010/03/smart-optical-slave-flash-trigger
- http://digitalcave.ca/resources/avr/slave-flash.jsp
- http://legxaro.de/AWL/Code (git://github.com/polygon/awl.git)
- http://off-the-clock.timothy-nicole-marks.com/computers-and-electronics/nikon-flash-analysis
- http://www.jeffmcbride.net/2010/12/05/reverse-engineering-nikon-cls-remote-flash-control/
- http://www.nikonians.org/forums/dcboard.php?az=show_topic&forum=154&topic_id=38452&mesg_id=38452&listing_type=&page=