This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.
The DIY MP3 Music Player system is powered by a 5V DC power supply, typically driven by a standard USB mobile charger via a Type-A USB cable connected to a 2-wire power cable. This regulated 5V rail supplies operating voltage to the core Bluetooth MP3 Player with FM Receiver Module. This module integrates multiple audio sources: it decodes digital audio files from storage media, receives wireless audio streams via Bluetooth, and tunes into local broadcast frequencies using an attached FM antenna (either a whip antenna or hook-up wire). User control over track selection, volume, and mode switching is managed locally or remotely using the included IR Remote Control.
Audio signals generated by the MP3 and receiver module are routed through a 3-wire audio cable to an external Audio Amplifier equipped with a 3.5mm input jack, or linked using a 3.5mm stereo audio jack with cable. The amplifier processes these low-level line signals, boosting them to drive connected speakers with sufficient acoustic power. Mechanically, all electronic components, including the wiring harnesses and power supplies, are housed securely inside a custom structural enclosure built using cardboard, measured with a scale and pencil, cut to size, and assembled permanently using a glue gun. This integrates the power distribution, signal processing, amplification, and user interface into a single, cohesive portable multimedia device.
Why Build This
Design and prototype a functional, multi-source audio system integrating wireless Bluetooth, FM radio, and digital file playback for undergraduate design portfolios.
Implement practical power distribution and audio signal routing techniques using modular analog and digital electronics components.
Fabricate a custom, structurally sound electronics enclosure using rapid prototyping materials like cardboard and hot glue.
Real-World Application
Custom home audio systems, portable music players, low-cost desktop speakers, and DIY multimedia projects.
Skills You'll Learn
Audio signal routing
DC power supply integration
RF antenna implementation
Bluetooth module interfacing
infrared remote control decoding
mechanical enclosure fabrication
Safety Precautions
Flagged during content review — not in the original source
Ensure all 5V DC power connections are properly insulated to prevent short circuits, and disconnect the USB power supply before modifying any audio or antenna wiring.
Technology Tags
BLUETOOTH
FM RADIO
AUDIO
MP3 PLAYER
IR REMOTE CONTROL
CARDBOARD CONSTRUCTION
Frequently Asked Questions
Yes, a standard USB mobile charger providing a 5V output via a Type-A USB cable is fully compatible with powering the MP3 and Bluetooth module.
The whip antenna or hook-up wire acts as a receiver for radiofrequency signals, allowing the built-in FM receiver module to clearly capture local radio broadcasts.
No software or programming is required, as the Bluetooth MP3 player module operates autonomously with its own onboard firmware controlled via the IR remote.
Gallery
This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi
Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm
Rs. 45.00
Cable for Arduino Nano (USB 2.0 A to USB 2.0 Mini B) 30cm
Rs. 69.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality
Rs. 89.00
Jumper Wire 10 Pin Male To Female 20cm
Rs. 45.00
