LEDs Strip Project Code

#include <Arduino.h>
#include <FastLED.h>


#define NUM_LEDS 600 // the number of LEDs
CRGB leds[NUM_LEDS];


#define DATA_PIN 4 // where the D1 port of the LEDs plug in the Arduino
#define delayLEDS 5
#define sensorPin A0 // where the SIG port of the Sound Sensor plug in the Arduino
#define LED_TYPE WS2811
#define COLOR_ORDER CRGB


void FilterSignal(float sensorSignal);
void CompareSignalFiltered(float filteredSignal);
void MainFunction();


float sensorValue = 0, filteredSignal = 0,
    filteredSignalValues[] = {3.4, 3.1, 2.7, 2.4, 2.1, 1.7, 1.3, 0.9, 0.4};


void setup () {


  delay(1);
  FastLED.addLeds<WS2811, DATA_PIN>(leds, NUM_LEDS);
  FastLED.setBrightness(250);
  Serial.begin (9600);


}



void loop () {


  MainFunction();
  delay(delayLEDS);


}


void MainFunction() {


  sensorValue = (float) analogRead(sensorPin) * (5.0 / 1024.0);


  FilterSignal(sensorValue);


  Serial.print(sensorValue);
  Serial.print(" ");
  Serial.println(filteredSignal);


  CompareSignalFiltered(filteredSignal);


}


void FilterSignal(float sensorSignal) {


  filteredSignal = (0.945 * filteredSignal) + (0.0549 * sensorSignal);


}


void CompareSignalFiltered(float filteredSignal) {


// l'ordre de sensibilité est décroissante, c'est une fourchette de 0 à 9
  if (filteredSignal > filteredSignalValues[0]) { // from too much noise to harmful to the ears
    fill_solid( leds, NUM_LEDS, CRGB::Red );
    FastLED.show();
  } else if (filteredSignal > filteredSignalValues[5]) { // from a bit of noise to a lot of noise
    fill_solid( leds, NUM_LEDS, CRGB::Orange );
    FastLED.show();
  } else if (filteredSignal > filteredSignalValues[8]) { // from almost silence to pretty calm
    fill_solid( leds, NUM_LEDS, CRGB::Green );
    FastLED.show();
  } else { // No sound detected
    fill_solid( leds, NUM_LEDS, CRGB::Green );
    FastLED.show();
  }
}