THEORY & PRACTICE
IR Remote Control Protocol
Illustration by Dustin Amery Hostetler/UPSO.org
Get an infrared remote to turn your room lights on and off.
THEORY
Back when I was an undergraduate at MIT eight years ago, my fraternity had a loft in every room. This suited me fine, but there was no way to turn the light switch off from up there when it was time for some sleep, and I certainly did not want to trundle across a floor land-mined with DIP ICs, papers, and tools, then climb up the precarious ladder to my roost without the benefit of sight.
Meanwhile, I also had a Sony stereo system with a remote control that ...
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