ESP32 64 Band Audio Spectrum Analyser
An ESP32 64-Band Audio Spectrum Analyzer is a compact, powerful project that utilizes the ESP32 microcontroller to visualize audio frequencies. It processes audio signals through an analog-to-digital converter (ADC) or I²S input, applies Fast Fourier Transform (FFT), and displays frequency bands on an SSD1322 256x64 OLED screen. This sleek and functional gadget is perfect for your desk, adding a vibrant and dynamic visual element while showcasing real-time audio analysis. It’s a great project for audio enthusiasts and a striking conversation piece.
Software
- Platform IO IDE
- Kiss FFT Library
Features
- 3 Modes Band Column 32,42,64
- 2 Modes of Peak Holder
- Adjustable Peak Delay time
- Based on ESP32 Wemos Mini
- Onboard Audio Gain Adjuster for Line In
- Schematics
- PCB Gerber Files
- Can be further tweaked for more advanced features
Demo
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