Summary of AN EASY MUSIC VISUALIZER WITH THE ARDUINO NANO
The LUMAZOID visualizer is an open-source project that syncs WS2812B LED strips with ambient sound or music. Using an Arduino Nano, it captures audio signals, processes them with a Fast Fourier Transform to analyze frequency intensities, and pulses the LEDs accordingly. A sensitivity potentiometer allows adjustment of input levels, and the system can respond to bass frequencies or the entire audio spectrum. The project supports LED strips with 60, 120, or 180 LEDs, offering an accessible way to create an audio-reactive light display.
Parts used in the LUMAZOID visualizer:
- Arduino Nano
- WS2812B LED strip (60, 120, or 180 LEDs)
- Potentiometer (sensitivity adjustment)
Flashing LEDs are all well and good, but they’re even better if they can sync up with ambient sounds or music. [mircemk] has built the LUMAZOID visualizer to do just that, relying on some staple maker components to do so.
The build is open-source, and designed to work with strings of 60, 120, or 180 WS2812B LEDs. An Arduino Nano is charged with running the show, capturing audio via its analog-to-digital converter. A sensitivity pot enables the input level to be set appropriately.
From there, a Fast Fourier Transform is taken, providing data on the intensity of the audio in various frequency bins. The LUMAZOID can be set up to respond to just bass or to all frequencies as a whole. This data is then used to pulse the LEDs in time with the beat.
It’s a fun project that demonstrates the basic techniques required to build an audio-reactive visualizer. We’ve seen some other great builds in this space before, too. Video after the break.
Source: AN EASY MUSIC VISUALIZER WITH THE ARDUINO NANO
