WEBVTT

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Let's directly dive in and make the Raspberry Pi communicate with the Arduino.

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This first part of the course will lay the foundations you need in order to build any project using

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both Arduino and Raspberry Pi.

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Now, how are we going to make those two boats communicate between each other?

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Well, we are going to use serial communication.

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And what is serial communication?

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Basically, serial communication is simply a way to transfer data between two devices.

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More specifically, serial is based on the Uart protocol, which means universal asynchronous reception

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and transmission.

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If this sounds complicated, well, this is not asynchronous reception, and transmission simply means

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that you can talk from the Raspberry Pi to the Arduino and from the Arduino to the Raspberry Pi at the

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same time, just like when you are chatting with someone on your phone, you can send messages and the

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other person can send messages at the same time.

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Now, don't worry too much.

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We won't need to dive into the low level details because there are some high level libraries that we

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can directly use in our code and which will make things easier.

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In fact, you probably already know serial communication.

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If you were using the serial monitor on the Arduino IDE to debug your Arduino.

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Well, this is serial communication between your Arduino board and your Arduino IDE on your computer.

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What we will do now is that instead of communicating between Arduino and the serial monitor, we will

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create a communication between Alverno and a Python program on the Raspberry Pi.

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So in this section, I will first show you how to do the required setup for serial communication to

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work.

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We will then initiate a communication between the Raspberry Pi and Arduino board and step by step through

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several code iterations, you will discover the different ways to communicate with Serial.

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After this, I will give you some activities so you can practice on everything you will see now.

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All right.

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And let's get started.