Added some comments

lichterKette.ino

@@ -3,10 +3,14 @@
   #include <avr/power.h>
 #endif
 
+//Important: Set the number of LEDs here!!!
 #define PIN            6
 #define NUMPIXELS      22
+
+//Create the object representation of our strip
 Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
 
+//Some usefull variables and buffers, currently not all in use
 unsigned long previousMillis = 0; 
 unsigned long interval = 0;
 int mode = 0;
@@ -27,14 +31,13 @@ void setup() {
 void loop() {
 
 
-       interval = 100;
     if(element<NUMPIXELS)
       element++;
     else 
       element = 0;
       
     for(int i = 0; i < NUMPIXELS; i++){
-      
+      //Set the color values for all leds as pixels.Color(G,R,B);
      pixels.setPixelColor(i,pixels.Color(((i==element)?255 :0),((i==element)?0:0),((i==element)?0:255))); // Moderately bright green color.
     }
     
@@ -44,6 +47,7 @@ void loop() {
     else pixels.setPixelColor(i,pixels.Color(255,0,0));
     }
     */
+    //this sends the data from our object to the actuall strip
     pixels.show(); 
     delay(200);
 }