Tutorial 07: digitalRead() and the Serial Port: Arduino Course for Absolute Beginners (ReM)

This tutorial covers the basics of using an Arduino to read digital signals, focusing on the digitalRead function and serial communication. It explains the setup of a simple circuit with a push button and resistor, and how to use the Arduino IDE to write and upload code. The tutorial also delves into the use of the serial library to establish communication between the Arduino and a computer, allowing users to monitor button states via the serial monitor.

What is the significance of the baud rate in serial communication?

What happens to the button state variable when the button is pressed?

Explain the difference between high and low voltage in the context of the button press.

How does the loop function ensure continuous monitoring of the button state?