 uint8_t led_vals[LOOP_LENGTH];
 uint8_t rgb_vals[LOOP_LENGTH];
 
-Adafruit_NeoPixel strip = Adafruit_NeoPixel(1, LED_BUILTIN_RGB, NEO_GRB + NEO_KHZ800);
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(2, LED_BUILTIN_RGB, NEO_GRB + NEO_KHZ800);
 
 int led = A2;
 int ledInput = A1;


  pinMode(A0, OUTPUT);
  digitalWrite(A0, HIGH);  // provide an easy +3V reference for pots on A0
  
  // activate a hidden feature pullup on PTB2 to stabilize color when input is floating
  *((unsigned int *)0x4004A008) |= 0x103;
}



  analogWrite(led, led_vals[index]);
  rgb = hueToRgb(rgb_vals[index]);
  strip.setPixelColor(0, strip.Color(rgb.r, rgb.g, rgb.b));
  strip.setPixelColor(1, strip.Color(rgb.r, rgb.g, rgb.b));
  strip.show();
}

