[youtube=”http://www.youtube.com/watch?v=Co9mhYp0anA&feature=youtube_gdata”]
http://wp.me/p1CIX9-udv

Infrared light may be invisible to the human eye – but it’s usefulness in the world of electronics is easy to see. IR emitters & detectors can be used in a variety of different ways – most of us use them for wireless communication everyday.