1 ESP32 spectrum analyser VU meter using arduinoFFT and a FastLED matrix
Scott Marley's walkthrough is often suggested for turning audio into frequency bands on an ESP32 to drive LEDs, with useful background on the maths and sampling.
Topic
5 videos. Ranked by independent recommendations, not by views.
Scott Marley's walkthrough is often suggested for turning audio into frequency bands on an ESP32 to drive LEDs, with useful background on the maths and sampling.
An approachable Veritasium account of the Fast Fourier Transform and its background, suggested as a gentle way into the idea before heavier lectures.
An Arduino spectrum analyser on an RGB LED matrix, linked as an example for anyone wanting to build a similar audio display with published code.
Shown as an example of an LED spectrum analyser driven by FFT on Arduino, mainly as a demonstration of what such a project looks like.
Pointed to as an example of an audio spectrum analyser project, useful for seeing what frequency analysis on a small board can look like.