How Infrared (IR) is Used in Controllers

Ever since the first remote controls for televisions came out in the 1950s, mankind has been fascinated with the idea of controlling their television, stereo, VCR, DVD player, and everything else they could without having to get out of their comfortable chairs. Today, we have remote controlled fans, microwaves, lights for our homes, and as soon as somebody figures out how to do it, I'm sure we'll have a
remote controlled device to walk the dog.

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