digital.ino

#include <FastLED.h>

#define NUM_LEDS 10
#define LED_PIN 9
#define LED_TYPE WS2811

CRGB led[NUM_LEDS];


void setup()
{
  Serial.begin(9600);
  pinMode(7,INPUT); //SIG of the Parallax Sound Impact Sensor connected to Digital Pin 7
  FastLED.addLeds<LED_TYPE, LED_PIN>(led, NUM_LEDS);

  for (int i = 0; i < NUM_LEDS; i++) {
    led[i] = CRGB(0, 0, 0);
  }

  FastLED.show();
}

//this function will make the LED dim once the Parallax Sound Impact Sensor sends a 1 signal, and then return to it’s original brightness.
void loop()
{
  boolean soundstate = digitalRead(7);
  Serial.print(soundstate);
  Serial.print("\n");
  if (soundstate == 1) {
    setBlue(255);
  }
  else{
    setBlue(0);
  }
}

void setBlue(int val) {
  for (int i = 0; i < NUM_LEDS; i++) {
    led[i] = CRGB(0, 0, val);
  }

  FastLED.show();
}