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C Programming for Arduino
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We are going to explore a technique called multiplexing . This is a major subchapter because we are going to learn how to make our real-life project more concrete, more real.
We often have many constraints in the real world. One can be the number of Arduinos available. This constraint can also come from having a computer that has only one USB port. Yes, this happens in real life, and I would be lying if I said you can have every connector you want, whenever you want, within the budget you want.
Imagine that you have to plug more than eight sensors to you Arduino's analog input. How would you do it?
We will learn to multiplex signals.
Multiplexing is quite common in the telecommunications world. Multiplexing defines techniques providing efficient ways to make multiple signals share a single medium.

Basic multiplexing concept showing the shared medium
This technique provides a very helpful concept in which you only need one...
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