LED Matrix Spectrum Analyzer with Real-Time Audio FFT
Visualize music frequencies on a 16x16 WS2812B RGB LED matrix using fast Fourier transforms.
Project Overview
Turn sound into vibrant animated visuals by performing real-time Fast Fourier Transform (FFT) analysis on 3.5mm audio line-in signals.
Highlights
- 16-band audio frequency binning (60Hz to 16kHz)
- Arduino FFT library integration with peak falloff animations
- 16x16 Addressable WS2812B / NeoPixel matrix mapping
- Multiple visualizer modes (Rainbow, Fire, Pulse, Spectrum)