Introduction

I love Christmas, but something always bothered me, Christmas lights and their boringness, so I decided to build my own set of lights and make them dance to music! Originally I had planned to make this for my apartment but it turned out to be too small. So I asked for permission to do this crazy project at my school. And guess what? They jumped right into it! So I began doing sequences, soldering billions of LED strips and making a cool looking Arduino based controller (actually 3 of them) that look something like this puppy here:

How it's built

It has built in Ethernet connection, 1 WS2811 compatible output port capable of driving up to 4096 Pixels and 2 regular old output ports for controlling regular 5050 RGB LED strips.

The software I used to make the lights blink is called Vixen Lights and can be found here for free. It is compatible with WS2811 pixels and the ArtNet protocol out of the box which makes it perfect for this application.

The final result

And finally after two months of tinkering and lots of money spent, the final result is this:

The show ran for a whole week, and everyday a different group of people came by to watch it, making it by far my best project using only an Arduino and some LEDs.

EXPANDED TECHNICAL DETAILS

Synchronized Musical Light Show

This project brings professional house-lighting automation to a school environment using an Arduino and the Vixen Lights sequencing software.

• Vixen Generic Serial Protocol: Vixen sends a high-speed stream of channel data (brightness values for each light) over a USB-Serial link. The Arduino parses these packets and updates its outputs in real-time.
• AC Load Management: The Arduino triggers an 8-channel Relay or SSR (Solid State Relay) bank. This allows the low-voltage board to safely toggle high-voltage 120V/240V Christmas light strings in perfect sync with the music.

Educational Impact

• Programming Patterns: Students can learn about data structures, serial communication, and rhythmic timing by designing their own light sequences to match their favorite songs.