This tutorial is “Arduino Interface UART(Serial)”. The Universal Asynchronous Receiver-Transmitter (UART) is a fundamental component in microcontroller communication, enabling data exchange between devices. In the realm of Arduino, mastering UART opens doors to interfacing with a plethora of sensors, actuators, and other devices.

In this guide, we’ll delve into the basics of UART communication with Arduino. Whether you’re a hobbyist embarking on your first Arduino project or an experienced developer seeking a refresher, this tutorial aims to demystify UART and equip you with the knowledge to integrate it seamlessly into your projects.

Let’s embark on this journey to unravel the intricacies of UART communication with Arduino, from understanding the principles behind UART to implementing it in your own circuits and code.

Use cases

The Arduino UART (Serial) interface offers a wide range of uses across various projects and applications.

Print Hello World in Serial terminal

Code

void setup() 
{
  Serial.begin(9600);
  while (! Serial); // Wait untilSerial is ready - Leonardo
  Serial.println("ArunEworld : Hello World");
}
 
void loop() 
{
 
}