Audio.ino

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// @filter: (mem is large) and ((platform is teensy) or (platform is esp32))
 
#include <FastLED.h>
 
#if defined(FL_IS_TEENSY)
// Keep fbuild's library scanner aware of PJRC Audio sources for Teensy.
#include <Audio.h>
#endif
 
#if !SKETCH_HAS_LARGE_MEMORY
void setup() {}
void loop() {}
#else
 
#include "fl/ui/ui.h"
 
#define NUM_LEDS 180
#define LEDS_PER_SEGMENT 60
#define DATA_PIN 3
 
fl::CRGB leds[NUM_LEDS];
fl::UIAudio audio_ui("Audio Input");
 
void setup() {
    Serial.begin(115200);
    FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
    FastLED.setBrightness(128);
}
 
void loop() {
    fadeToBlackBy(leds, NUM_LEDS, 30);
 
    // Lazily registers with FastLED on first call, cached thereafter
    auto audio = audio_ui.processor();
 
    float bass = audio->getVibeBass();
    float mid = audio->getVibeMid();
    float treb = audio->getVibeTreb();
 
    // Segment 1 (LEDs 0-59): Bass - red/orange
    uint8_t bassVal = fl::clamp(bass * 200.0f, 0.0f, 255.0f);
    fill_solid(leds, LEDS_PER_SEGMENT, CHSV(0, 255, bassVal));
 
    // Segment 2 (LEDs 60-119): Mid - green
    uint8_t midVal = fl::clamp(mid * 200.0f, 0.0f, 255.0f);
    fill_solid(leds + LEDS_PER_SEGMENT, LEDS_PER_SEGMENT, CHSV(96, 255, midVal));
 
    // Segment 3 (LEDs 120-179): Treble - blue
    uint8_t trebVal = fl::clamp(treb * 200.0f, 0.0f, 255.0f);
    fill_solid(leds + 2 * LEDS_PER_SEGMENT, LEDS_PER_SEGMENT, CHSV(160, 255, trebVal));
 
    FastLED.show();
}
 
#endif