![]() ![]() ![]() For information to be interpreted correctly, receiving side needs to recognize where each message begins and end. This information often consists of groups of variables that need to be sent together. Hardware or software serial libraries handle sending and receiving information. 14 shows how to use software Serial library to communicate with multiple devices. If this is the case, you can use an additional library that uses software to emulate Serial hardware. Sometimes you need more Serial ports than the number of hardware Serial ports available. Serial libraries simplify use of Serial ports by insulating you from hardware complexities. You will usually use the built - in Arduino Serial library to communicate with hardware Serial ports.
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