DiscoJar is a sound reactive DIY LED lamp, using an Ikea jar and 288 APA102 LEDs.
It does real-time spectrum analysis of the audio input and shows a colorful view of it.
This instructable will guide you how to build your own DiscoJar! It provides instructions and the full source code for the micro controller.
A Teensy 3.2 micro controller is used to control the LEDs and to analyze and display the spectrum of incoming music using various visual effects. The lamp features a WiFi remote control and it can also be used as a mood lamp. It can e.g. show plasma effects or you can program your own custom patterns.
Building the project costs around 100 Euros, the LEDs are the most expensive part.
The project is easy to build, all you need are some soldering skills to solder the APA strips together.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.