Bluetooth Speaker w/ Reactive LED Matrix || How to Build a Speaker || DIY @modustrial
Bluetooth Speaker w/ Reactive LED Matrix || How to Build a Speaker || DIY  @modustrial
Uploaded November 2017 | Updated September 2026, 2 weeks ago
This video shows how to make a DIY Bluetooth Speaker with an integrated audio-reactive LED matrix. The LED matrix includes a number of different visualization modes, including several that react to the music via a microphone inside of the speaker box.

The speaker box involved a fair amount of woodworking. The outside of the box is made from rough curly maple lumber, which I milled to 3/4". The front and back panels are made from MDF.

Internally, I am using a 2x15w Dayton Audio bluetooth amplifier board for the audio, and an Arduino Mega to control a 16x16 LED matrix.

FOLLOW ME ON INSTAGRAM: @modustrialmaker / instagram.com/modustrialmaker/?hl=en

A big thanks to Soundblab for helping me out with this build, a link to his channel is here: goo.gl/bUKrbx

After posting this video, a similar LED matrix product (MondoBrite) was shared with me. Although I came up with it on my own, it looks like I wasn't the first to have the idea for the adjustable diffuser. This product is worth checking out if you don't want to build this from scratch: britefun.com

ARDUINO CODE (in-progress, but works): github.com/modustrialmaker/Audio-Reactive-LED-Matrix

GOOD PRE-MADE LED MUSIC CONTROLLER (if you don't want to mess with Arduino): amzn.to/2I42PKQ

PARTS LINKS:

Diffuser:

Semi-transparent white acrylic sheet: goo.gl/YV4X81


Electronics:

Arduino Mega (or clone): bit.ly/2xHtew4

16x16 LED Matrix: amzn.to/2BgIcsj

19.7V or 24V power supply (at least 60w): bit.ly/2fnIpQy

3” Full Range Speakers: amzn.to/2iJ4GdZ

Dayton Audio 2x15w Bluetooth Amp board: goo.gl/Rx9Ez2

Dayton Audio accessories pack with audio line-in jack: goo.gl/eAQCWJ

Bracket for Dayton Audio board: goo.gl/NJejt1

1000 mF capacitor: amzn.to/2hZ9MWj

330 ohm resistor

Auto-gain Electret Microphone: amzn.to/2hNQjnS

24V 16mm Latching on/off LED push button: amzn.to/2Bg5xu9

5V 16mm Latching on/off LED push button: goo.gl/Y28Vkh

5V 16mm Momentary LED push button: amzn.to/2BeZjuq

Female Power Jack: amzn.to/2ziyuEB

Spade connectors: amzn.to/2zfpiAD

Lever-nut Wire Connectors: amzn.to/2BhMtvM

Step-down converter: amzn.to/2A44gGh

Alternate Power Option:

5V power supply (at least 70w): amzn.to/2zgiGSJ
Step-up converter (to raise to 19.7V for speaker circuit): bit.ly/2jYc4VL

LED Baffle & Hardware

5” 1/4-20 bolt
T-nut (1/4-20 threaded)
Knurl Nut Thumb Screw (1/4-20 threaded): amzn.to/2jSRdDF
Brass screws: amzn.to/2BgEkaD

Tools/Other Stuff

Forstner Bits: amzn.to/2Bgv863

RZ dust mask: amzn.to/2wM8F1t

MUSIC:

1. Fredji & Tobsky - When the Sun Goes Down

2. Fredji - Endless Nights

Support Fredji:
soundcloud.com/fredjimusic
facebook.com/fredjimusic
instagram.com/freddeanderson


3. AGST - Dreams

Music provided by Vlog No Copyright Music.
Video Link: youtu.be/kvRhjsQNqZc

#speakerbuild
#diyspeaker
#woodworking
#LEDmatrix
#arduino
#musicreactive
#spectrumanalyzer
#microcontroller
#LEDlights
#bluetoothspeaker
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Bluetooth Speaker w/ Reactive LED Matrix || How to Build a Speaker || DIY

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