Multiplexer

A multiplexer, or mux, is a device that can select one of many analog or digital input signals and forward it into a single input. In essence, the mux allows you to connect many sensors to a single input while still being able to read from them as if they were all on separate inputs. This is helpful if your Microcontroller has less inputs than you need.

Please add to this article
Difference between mux and Shift register