diff --git a/ColorStrip.ino b/ColorStrip.ino
index c214e7a..e68f5bd 100644
--- a/ColorStrip.ino
+++ b/ColorStrip.ino
@@ -10,50 +10,58 @@ unsigned char offset = 0;
 void (*viz[VIZUALIZATIONS])(unsigned char);
 volatile unsigned char currentViz = 0;
 
-void sineRed(unsigned char offset) {
-  for (unsigned char i = 0; i < NUM_LEDS; i++)
-    pixels[(i + offset) % NUM_LEDS] = CRGB(128 + floor(127 * sin(2 * 3.1415926 * i / NUM_LEDS)), 0, 0);
+void sineRed(unsigned char offset)
+{
+    for (unsigned char i = 0; i < NUM_LEDS; i++)
+        pixels[(i + offset) % NUM_LEDS] = CRGB(128 + floor(127 * sin(2 * 3.1415926 * i / NUM_LEDS)), 0, 0);
 }
-void falloffRed(unsigned char offset) {
-  for (unsigned char i = 0; i < NUM_LEDS; i++)
-    pixels[i] = 0;
-  pixels[offset % NUM_LEDS]        = CRGB(0x0F, 0xF, 0xF);
-  pixels[(offset + 1) % NUM_LEDS]  = CRGB(0x1F, 0xE, 0xE);
-  pixels[(offset + 2) % NUM_LEDS]  = CRGB(0x2F, 0xD, 0xD);
-  pixels[(offset + 3) % NUM_LEDS]  = CRGB(0x3F, 0xC, 0xC);
-  pixels[(offset + 4) % NUM_LEDS]  = CRGB(0x4F, 0xB, 0xB);
-  pixels[(offset + 5) % NUM_LEDS]  = CRGB(0x5F, 0xA, 0xA);
-  pixels[(offset + 6) % NUM_LEDS]  = CRGB(0x6F, 0x9, 0x9);
-  pixels[(offset + 7) % NUM_LEDS]  = CRGB(0x7F, 0x8, 0x8);
-  pixels[(offset + 8) % NUM_LEDS]  = CRGB(0x8F, 0x7, 0x7);
-  pixels[(offset + 9) % NUM_LEDS]  = CRGB(0x9F, 0x6, 0x6);
-  pixels[(offset + 10) % NUM_LEDS] = CRGB(0xAF, 0x5, 0x5);
-  pixels[(offset + 11) % NUM_LEDS] = CRGB(0xBF, 0x4, 0x4);
-  pixels[(offset + 12) % NUM_LEDS] = CRGB(0xCF, 0x3, 0x3);
-  pixels[(offset + 13) % NUM_LEDS] = CRGB(0xDF, 0x2, 0x2);
-  pixels[(offset + 14) % NUM_LEDS] = CRGB(0xEF, 0x1, 0x1);
-  pixels[(offset + 15) % NUM_LEDS] = CRGB(0xFF, 0x0, 0x0);
+void falloffRed(unsigned char offset)
+{
+    for (unsigned char i = 0; i < NUM_LEDS; i++)
+        pixels[i] = 0;
+    pixels[offset % NUM_LEDS]        = CRGB(0x0F, 0xF, 0xF);
+    pixels[(offset + 1) % NUM_LEDS]  = CRGB(0x1F, 0xE, 0xE);
+    pixels[(offset + 2) % NUM_LEDS]  = CRGB(0x2F, 0xD, 0xD);
+    pixels[(offset + 3) % NUM_LEDS]  = CRGB(0x3F, 0xC, 0xC);
+    pixels[(offset + 4) % NUM_LEDS]  = CRGB(0x4F, 0xB, 0xB);
+    pixels[(offset + 5) % NUM_LEDS]  = CRGB(0x5F, 0xA, 0xA);
+    pixels[(offset + 6) % NUM_LEDS]  = CRGB(0x6F, 0x9, 0x9);
+    pixels[(offset + 7) % NUM_LEDS]  = CRGB(0x7F, 0x8, 0x8);
+    pixels[(offset + 8) % NUM_LEDS]  = CRGB(0x8F, 0x7, 0x7);
+    pixels[(offset + 9) % NUM_LEDS]  = CRGB(0x9F, 0x6, 0x6);
+    pixels[(offset + 10) % NUM_LEDS] = CRGB(0xAF, 0x5, 0x5);
+    pixels[(offset + 11) % NUM_LEDS] = CRGB(0xBF, 0x4, 0x4);
+    pixels[(offset + 12) % NUM_LEDS] = CRGB(0xCF, 0x3, 0x3);
+    pixels[(offset + 13) % NUM_LEDS] = CRGB(0xDF, 0x2, 0x2);
+    pixels[(offset + 14) % NUM_LEDS] = CRGB(0xEF, 0x1, 0x1);
+    pixels[(offset + 15) % NUM_LEDS] = CRGB(0xFF, 0x0, 0x0);
 }
 
-void changeViz(void) {
-  currentViz = (currentViz + 1) % VIZUALIZATIONS;
+void changeViz(void)
+{
+    currentViz = (currentViz + 1) % VIZUALIZATIONS;
 }
 
-void setup() {
-  FastLED.addLeds<WS2812B, DATA_PIN>(pixels, NUM_LEDS);
-  FastLED.setBrightness(255);
-  for (int i = 0; i < NUM_LEDS; i++)
-    pixels[i] = CRGB(0, 0, 0);
-  FastLED.show();
-  viz[0] = &sineRed;
-  viz[1] = &falloffRed;
-  pinMode(INTR_PIN, INPUT_PULLUP);
-  attachInterrupt(digitalPinToInterrupt(INTR_PIN), changeViz, FALLING);
+void setup()
+{
+    FastLED.addLeds<WS2812B, DATA_PIN>(pixels, NUM_LEDS);
+    FastLED.setBrightness(0);
+    for (int i = 0; i < NUM_LEDS; i++)
+        pixels[i] = CRGB(0, 0, 0);
+    FastLED.show();
+    viz[0] = &sineRed;
+    viz[1] = &falloffRed;
+    pinMode(INTR_PIN, INPUT_PULLUP);
+    attachInterrupt(digitalPinToInterrupt(INTR_PIN), changeViz, FALLING);
 }
 
-void loop() {
-  (*viz[currentViz])(offset);
-  FastLED.show();
-  delay(100);
-  offset++;
+void loop()
+{
+    unsigned char brightness = 16 + floor(239.0 * analogRead(A0) / 1024.0);
+    unsigned int sleep = 100 + floor(900.0 * analogRead(A1) / 1024.0);
+    (*viz[currentViz])(offset);
+    FastLED.setBrightness(brightness);
+    FastLED.show();
+    delay(sleep);
+    offset++;
 }
diff --git a/README.md b/README.md
index c609991..959dd70 100644
--- a/README.md
+++ b/README.md
@@ -9,12 +9,18 @@ Specs
 -   Arduino UNO
     -   Data Pin: 4
     -   Interrupt Pin: 2
+    -   Helligkeit: Potentiometer auf Pin A0
+    -   Geschwindigkeit: Potentiometer auf Pin A1
 -   LED Strip:
     -   5m lang
     -   10 Pixel/m
     -   3 RGB-LEDs/Pixel
     -   WS2818B Controller
 
+Die Potentiometer auf Pins A0 und A1 steuern die Helligkeit (zwischen
+1/16-tel und voll) bzw. Geschwindigkeit (zwischen 100ms und 1000ms
+zwischen den Schritten) der Animation.
+
 Code
 ----