Arduino Sound LED Strip

arduino_sound_lights.cpp

#include <FastLED.h>

#define AUDIO_PIN A0
#define LEDST_PIN 5

#define LED_TYPE    WS2811
#define BRIGHTNESS  100
#define NUM_LEDS    60
#define COLOR_ORDER GRB

#define UPDATES_PER_SECOND 100


CRGB          leds[NUM_LEDS];
CRGBPalette16 colors;
CRGB          randcolor;

int start = 0;

void setup() {
  delay(3000);

  Serial.begin(115200);

  pinMode(5,  INPUT);
  pinMode(6, OUTPUT);

  FastLED.addLeds<LED_TYPE, LEDST_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
  FastLED.setBrightness(  BRIGHTNESS );
}

int maxread = 0;
CRGB lastread;

void loop() {
  int reading = analogRead(AUDIO_PIN);
  if (reading > 50) {
    lastread = CHSV(reading, 255, reading%200+random8()%50);
  }
  
  if (reading > maxread) {
    maxread = reading;
    Serial.println(maxread);
  }

  for (int i = NUM_LEDS-1; i >= 1 ; i--) {
    leds[i] = leds[i-1];
  }
  leds[0] = lastread;
  
  FastLED.show();
  FastLED.delay(1000 / UPDATES_PER_SECOND);
}