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Arduino Internals by Dale Wheat

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C H A P T E R  12

Networking

One Arduino can do a lot. More than one Arduino can do more. There’s an old saying: “Many hands make light work.” Arduinos are also known for working and playing well with others. The “others” may be other Arduinos, or they can be devices of a different stripe entirely.

To work together, they have to talk to each other. A certain amount of cooperation is necessary in order for a meaningful exchange of information to take place. Who will be involved in this conversation? Where will it take place? What are you going to talk about? Who goes first? After these questions are answered, the conversation can follow.

Let’s look at some of the ways you can use both the built-in networking capabilities of the Arduino and some ...

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