http://blog.makezine.com/archive/2011/07/circuit-skills-fiber-optics-sponsored-by-jameco-electronics.html Not all electronic signals are communicated via electricity. By transmitting information in the form of light, we can avoid...
http://blog.makezine.com/?p=98982 Another clever trick from the world of electronics — Pulse Width Modulation is a simple method for controlling analog...