ledstrip.ino

#include <Adafruit_NeoPixel.h>
#include <NanoSoftSensor.h>

#define LED_1 2
#define LED_2 3
#define LED_F 8

NanoSoftSensor soft_audio = NanoSoftSensor(3);

Adafruit_NeoPixel strip1 = Adafruit_NeoPixel(100, LED_1, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip2 = Adafruit_NeoPixel(100, LED_2, NEO_GRB + NEO_KHZ800);

Adafruit_NeoPixel feedback = Adafruit_NeoPixel(2, LED_F, NEO_GRB + NEO_KHZ800);

void setup() {
  strip1.begin();
  strip1.show();
  strip2.begin();
  strip2.show();
  feedback.begin();
  feedback.show();
}

void loop() {
  
  // read RGBI A4-A7
  
  int R = pot_map(analogRead(A4));
  int G = pot_map(analogRead(A5));
  int B = pot_map(analogRead(A6));
  int I = pot_map(analogRead(A7));
  
  // read audio pin A0
  int audio = analogRead(A0) - 512;
  
  // VU calculation
  if (audio < 0) {
    audio = abs(audio);
  }
  
  // map audio to leds
  audio = map(audio, 0, 256, 0, 100);
  
  // soft audio
  soft_audio.update(audio);

  // turn off leds
  for (uint16_t i = 0; i < strip1.numPixels(); i++) {
    strip1.setPixelColor(i, 0, 0, 0);
    strip2.setPixelColor(i, 0, 0, 0);
  }
  // turn leds
  for (uint16_t i = 0; i < audio; i++) {
  //for (uint16_t i = 0; i < soft_audio.value; i++) {
    strip1.setPixelColor(i, R, G, B);
    strip2.setPixelColor(i, R, B, G);
  }
  strip1.setBrightness(I);
  strip2.setBrightness(I);
  strip1.show();
  strip2.show();
  
  feedback.setPixelColor(0, G, R, B);
  feedback.setPixelColor(1, G, R, B);
  feedback.show();
  
  delay(10);
}

int pot_map(int val){
  return map(val,0,1023,0,255);
}