More specifically, when you use Serial with Arduino and Raspberry Pi, you’re using the UART protocol. The data will be sent sequentially, one bit at a time (1 byte = 8 bits), contrary to parallel communication, where many bits are sent at the same time.

Serial communication is simply a way to transfer data.

Raspberry Pi Arduino Serial communication: Application example.

Testing bidirectional Serial communication.

Bidirectional Serial communication between Raspberry Pi and Arduino.

Simple Serial communication from Arduino to Raspberry Pi.

Install Python Serial library on Raspberry Pi.

Hardware setup for Serial communication.

You probably already know Serial communication.

What is Serial communication (with UART).

That’s one of the most important thing to work on in order to switch from a very basic application to more complex ones. Each device – on top of doing well what it’s supposed to do – must be able to clearly communicate with other devices.

When working with electronic devices, communication is key. You are learning how to use the combo Raspberry Pi + Arduino to build your own projects?Ĭheck out Raspberry Pi and Arduino and learn step by step. > I also made a complete step by step video tutorial, to go from zero to bidirectional communication with Serial in 1h – check that out if you like to learn with video content:Īfter watching the video, subscribe to the Robotics Back-End Youtube channel so you don’t miss the next tutorials! I’ll use mostly Arduino Uno but will give more details about the differences between Arduino boards when it comes to Serial communication. This tutorial will work with a Raspberry Pi 4 (and earlier: 3B, 3B+) board, and any Arduino board. A basic example at first, leading to a more complete application using a Raspberry Pi, an Arduino, and other electronic devices. Then you’ll see how to setup your hardware and software, and we’ll dive into the Python code (Cpp for Arduino). In this tutorial I’ll show you how to communicate between a Raspberry Pi and an Arduino board via Serial communication.įirst, I’ll quickly explain what is Serial communication.

Arduino wire library change baud rate