   }
 
   for (uint8_t fade = FPS; fade > 0; fade--) {
-    int brightness = fade * 3;
+    int brightness = fade;
     strip.setPixelColor(pixel - 1, red - brightness, green - brightness, blue - brightness);
     strip.setPixelColor(pixel, red - brightness, green - brightness, blue - brightness);
     strip.setPixelColor(pixel + 1, red - brightness, green - brightness, blue - brightness);

  if (F_CPU == 16000000)
    clock_prescale_set(clock_div_1);
#endif

  strip.begin();
  strip.show();

#define FADE_TIME 1
#define TUNING 8 // Tunes range-finding to cm distance between pixels
#define FPS 50
#define NUM_PIXELS 50

Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_PIXELS, PIN, NEO_GRB + NEO_KHZ800);

int reds[NUM_PIXELS];
int greens[NUM_PIXELS];
int blues[NUM_PIXELS];

void setup() {
  Serial.begin(9600);
