Arduino Tutorial - Thunderous MP3 Audio with DFPlayer Mini and Op Amp

A tutorial on Sound with Arduino. Do you need to use an op-amp with Arduino? Do you need an audio breakout board? This project explores a DFPlayer Mini to Arduino Mega using a direct speaker connection. Then it demonstrates using an op amp circuit for even more power.

Dec 4, 2023

5113 views

4 respects

GPL3+

Components and supplies

1

DFPlayer - A Mini MP3 Player

1

General Purpose Single input Op amp

1

Arduino Mega 2560 Rev3

Apps and platforms

1

Arduino IDE 2.0 (beta)

Project description

Code

Arduino MP3

Arduino Source Code

Latest commit to the master branch on 19-12-2023

Downloadable files

Sample MP3 Files

MP3 files Needed for project

https://github.com/alittletech1/notes/blob/main/related/audio/mp3.zip

Documentation

Basic Circuit Diagram - Direct speaker connection

Direct speaker connection

basic circuit diagram.png

DFPlayer with Op Amp

DFPlayer with Op Amp

https://github.com/alittletech1/notes/blob/main/related/audio/opamp%20diagram.png

Comments

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som2003

6 months ago

Usage simple d'arduino pour réaliser un haut parleur

milespeterson101

a year ago

Do you really need to have an Op-amp circuit?? I'm pretty sure you can use the Arduino as an amplifier and save on unnecessary circuity.