11/9/2022 0 Comments Serial port arduino 1.8.5![]() ![]() In your program, inside the void setup() function, you set the data rate in bits per second ( baudrate) using Serial.begin(BAUDRATE). You first need to set the speed at which your computer will communicate with the Arduino (called the baudrate), it has to be the same on both sides. To use the Arduino serial port, there is a built-in object called Serial. (If you are already familiar with it, you can skip this part) Arduino Serial: Crash Courseīefore we dive into the traditional approach to communicate with the Arduino, we present a quick recap on the few functions you need to know to understand the code. In that case, you need to send orders to it so it will change the motor speed: that is what was used to teleoperate a tiny racing car:Īutonomous driving mode: the car follows the lineĪs you can see, serial communication is useful when you want to receive or send data from or to the Arduino when you want to interface it with a computer, a Raspberry Pi or even another Arduino board. One simple solution is to connect the Arduino to your computer via USB and send the data using the serial communication (Arduino already has built-in functions to communicate with the serial port).You may also want to remotely control a motor, connected to the Arduino board. Imagine you have a temperature sensor that is connected to an Arduino and you want to retrieve the values to your computer. To answer the why question, let’s start with an example. In this article, serial communication will only refer to the fact of communicating using the serial port of the Arduino/computer. This is the general definition of serial communication. ![]() Serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. Problem Overview What is serial communication and why do we need it? In the second part, we give an overview of the simple and robust communication protocol and then go into the details. Then we introduce the “classical” approach to communicate with the Arduino and show its limitations. In the first part, we briefly present what is serial communication and why do we need it. ![]()
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