How to Use a Microphone with Arduino

This video tutorial explains how to use an electret microphone with an Arduino to detect sound. It covers the basics of microphone functionality, including converting sound waves to electrical voltage and using an oscilloscope to visualize this process. The tutorial also discusses the importance of DC offset, calculating sound amplitude, and adjusting gain to manage noise. Finally, it provides a coding example to control LEDs based on sound amplitude detected by the Arduino.

Describe the process of calculating the loudness of sound using the microphone's output.

What adjustments can be made to the microphone's gain, and why is it important?

How can the Arduino be programmed to control LEDs based on sound amplitude?