diff --git a/pixelprojektor/NeoPatterns.cpp b/pixelprojektor/NeoPatterns.cpp
index b19f3ca..b6290e1 100644
--- a/pixelprojektor/NeoPatterns.cpp
+++ b/pixelprojektor/NeoPatterns.cpp
@@ -1,5 +1,7 @@
 #include "NeoPatterns.h"
 
+#include "config.h"
+
 NeoPatterns::NeoPatterns(uint16_t pixels, uint8_t pin, uint8_t type, void (*callback)()) :
   Adafruit_NeoPixel(pixels, pin, type)
 {
@@ -336,45 +338,47 @@ void NeoPatterns::SmoothUpdate() {
   uint8_t g = (uint8_t)(c >>  8);
   uint8_t b = (uint8_t)c;
 
-  movingPoint_x = movingPoint_x + 8 + random(-random(0, 1 + 1), random(0, 1 + 1) + 1);
-  movingPoint_y = movingPoint_y + 8 + random(-random(0, 1 + 1), random(0, 1 + 1) + 1);
-  if (movingPoint_x < 8) {
-    movingPoint_x = 8 - movingPoint_x;
-  } else if (movingPoint_x >= 16) {
-    movingPoint_x = 22 - movingPoint_x;
+  movingPoint_x = movingPoint_x + WIDTH + random(-random(0, 1 + 1), random(0, 1 + 1) + 1);
+  movingPoint_y = movingPoint_y + HEIGHT + random(-random(0, 1 + 1), random(0, 1 + 1) + 1);
+  if (movingPoint_x < WIDTH) {
+    movingPoint_x = WIDTH - movingPoint_x;
+  } else if (movingPoint_x >= (2*WIDTH)) {
+    //movingPoint_x = 22 - movingPoint_x;  //unklar warum 22? fuer WIDTH=8
+    movingPoint_x = (2*WIDTH) - movingPoint_x;
   } else {
-    movingPoint_x -= 8;
+    movingPoint_x -= WIDTH;
   }
 
-  if (movingPoint_y < 8) {
-    movingPoint_y = 8 - movingPoint_y;
-  } else if (movingPoint_y >= 16) {
-    movingPoint_y = 22 - movingPoint_y;
+  if (movingPoint_y < HEIGHT) {
+    movingPoint_y = HEIGHT - movingPoint_y;
+  } else if (movingPoint_y >= (2*HEIGHT)) {
+    //movingPoint_y = 22 - movingPoint_y;
+    movingPoint_y = (2*HEIGHT) - movingPoint_y;
   } else {
-    movingPoint_y -= 8;
+    movingPoint_y -= HEIGHT;
   }
   uint8_t startx = movingPoint_x;
   uint8_t starty = movingPoint_y;
 
   for (int i = 0; i < Strength; i++) {
 
-    movingPoint_x = startx + 8 + random(-random(0, 2 + 1), random(0, 2 + 1) + 1);
-    movingPoint_y = starty + 8 + random(-random(0, 2 + 1), random(0, 2 + 1) + 1);
+    movingPoint_x = startx + WIDTH + random(-random(0, 2 + 1), random(0, 2 + 1) + 1);
+    movingPoint_y = starty + HEIGHT + random(-random(0, 2 + 1), random(0, 2 + 1) + 1);
 
-    if (movingPoint_x < 8) {
-      movingPoint_x = 8 - movingPoint_x;
-    } else if (movingPoint_x >= 16) {
-      movingPoint_x = 22 - movingPoint_x;
+    if (movingPoint_x < WIDTH) {
+      movingPoint_x = WIDTH - movingPoint_x;
+    } else if (movingPoint_x >= (2*WIDTH)) {
+      movingPoint_x = (2*WIDTH) - movingPoint_x;
     } else {
-      movingPoint_x -= 8;
+      movingPoint_x -= WIDTH;
     }
 
-    if (movingPoint_y < 8) {
-      movingPoint_y = 8 - movingPoint_y;
-    } else if (movingPoint_y >= 16) {
-      movingPoint_y = 22 - movingPoint_y;
+    if (movingPoint_y < HEIGHT) {
+      movingPoint_y = HEIGHT - movingPoint_y;
+    } else if (movingPoint_y >= (2*HEIGHT)) {
+      movingPoint_y = (2*HEIGHT) - movingPoint_y;
     } else {
-      movingPoint_y -= 8;
+      movingPoint_y -= HEIGHT;
     }
 
     if (pixelR[xyToPos(movingPoint_x, movingPoint_y)] < r) {
@@ -613,9 +617,9 @@ uint32_t NeoPatterns::Wheel(byte WheelPos)
 // Convert x y pixel position to matrix position
 uint8_t NeoPatterns::xyToPos(int x, int y) {
   if (y % 2 == 0) {
-    return (y * 8 + x);
+    return (y * WIDTH + x);
   } else {
-    return (y * 8 + (7 - x));
+    return (y * WIDTH + (WIDTH-1 - x));
   }
 }
 
diff --git a/pixelprojektor/config.h b/pixelprojektor/config.h
new file mode 100644
index 0000000..0483d5b
--- /dev/null
+++ b/pixelprojektor/config.h
@@ -0,0 +1,16 @@
+#ifndef CONFIG_H
+#define CONFIG_H 
+
+//8x8 Matrix
+/*
+#define WIDTH 8 //WIDTH is along consecutive pixels
+#define HEIGHT 8
+#define NUMPIXELS 64 // 8x8 Matrix
+*/
+
+//3x6 LED Box
+#define WIDTH 3
+#define HEIGHT 6
+#define NUMPIXELS 18 // 3x6 LED Box
+
+#endif
diff --git a/pixelprojektor/pixelprojektor.ino b/pixelprojektor/pixelprojektor.ino
index 7908458..a215d88 100644
--- a/pixelprojektor/pixelprojektor.ino
+++ b/pixelprojektor/pixelprojektor.ino
@@ -6,8 +6,12 @@
 #include <avr/power.h>
 #endif
 
+#include "config.h"
+
 #define PIN D2  //data pin for ws2812 (pixelprojektor @ ctdo: PIN 2) // Für pixelpad: Pin2
-#define NUMPIXELS 64
+
+
+
 
 NeoPatterns strip = NeoPatterns(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800, &StripComplete);
 
@@ -214,6 +218,7 @@ void setup() {
   ArduinoOTA.onStart([]() {
     strip.clear();
     strip.setBrightness(64);
+    strip.show();
   });
   ArduinoOTA.onEnd([]() {
     strip.clear();