Arduino-Powered Portable Speaker

Overview

This project is an Arduino-powered portable speaker, designed to be a self-contained, battery-operated audio device. The speaker utilizes the DFPlayer Mini module to play audio files directly from an SD card, with automatic track looping for continuous playback.

Powered by 6 AA batteries, this speaker is easy to maintain and allows for quick battery replacement.

Originally this speaker was conceived as a fun project to attach to a Roomba, to get the roomba to say "OW" on impact with furniture

Concept & Inspiration

The idea for this portable speaker originated from collaborative discussions with Jackson Bowles, Alex Anthony, and Brenden Mahoney, exploring potential startup ventures. Through brainstorming and feedback, the design evolved into a compact, user-friendly device focused on convenience and functionality.

Features

• Self-contained, battery-powered design
• Audio playback directly from an SD card
• Automatic track looping
• Quick and simple battery replacement
• Arduino-based control using the DFPlayer Mini module
• Portable and adaptable to multiple use cases beyond the original concept

Circuit Diagram

Below is the network connection diagram for the portable Arduino speaker:

Hardware

• Arduino (specify model)
• DFPlayer Mini MP3 module
• 6 × AA batteries
• Speaker (specify size/impedance)
• Supporting components (resistors, wires, etc.)

Media

Demo Video – “OW!” Clip

Early Build of the Portable Speaker

Setup Instructions

1. Insert the SD card containing audio files into the DFPlayer Mini.
2. Connect the hardware according to the circuit diagram.
3. Power the system using 6 AA batteries.
4. Upload the Arduino sketch to the Arduino board.
5. Play audio directly or attach the speaker to another device for interactive or humorous effects, such as the "OW" clip demonstrated above.