M5StickC_AudioVisLed

Audio visualization based on an M5StickC (ESP32):

• Sampling of audio data from built-in microphone using i2s (44100 Hz sample rate)
• Transformation of sampled data into the frequency domain using arduinoFFT (2048 samples FFT, 21.5 Hz frequency resolution)
• Visualization of 20 frequency bands and beat detection using an RGB LED strip with 72 LEDs (configurable)

Getting Started

Development environment

• Visual Studio Code (version 1.59.0)
• PlatformIO IDE for VSCode

System

• Device: M5StickC
• Platform: espressif32
• Board: m5stick-c
• Framework: arduino

Peripherals

• RGB LED strip

Libraries used

• M5StickC
• arduinoFFT (develop branch)
• FastLED

Project Description

A comprehensive description of this project is available at hackster.io.

License

See the LICENSE file for details.

Copyright 2021 © Ernst Sikora