diff --git a/reaktionstesterclean.ino b/reaktionstesterclean.ino
index 7d2c147..854ec94 100644
--- a/reaktionstesterclean.ino
+++ b/reaktionstesterclean.ino
@@ -3,6 +3,37 @@
 #include <LiquidCrystal_I2C.h>
 #include <Wire.h>
 
+// Bonus code
+class pixeldraw {
+  private:
+  LiquidCrystal_I2C* lcd;
+  void constructbuf(int x, int y, byte* buf) {
+    buf[y] = B10000 >> x;
+    return buf;
+  }
+  public:
+  pixeldraw(LiquidCrystal_I2C* _lcd) {
+    lcd = _lcd;
+  }
+
+  void setpix(int _x, int _y) {
+    // calculate cell x and y
+    int cellx = _x/5;
+    int celly = _y/8;
+    int x = _x%5; // calculate modulo
+    int y = _y%8; // calculate modulo
+
+    byte buf[8] = { // load from cellbuf
+      0,0,0,0,0,0,0,0
+    };
+    constructbuf(x,y,buf);
+    lcd->createChar(cellx+(celly*16), buf);
+    lcd->clear();
+    lcd->setCursor(cellx, celly);
+    lcd->write(byte(cellx+(celly*16)));
+  }
+};
+
 int led = 7; // pin Nummern für jwl. Komponente
 int bt = 8;
 long highscore = 999999; // speichert highscore in einer Variable
@@ -19,6 +50,13 @@ void setup() {
   lcd.init();  // LCD initialisieren
   lcd.clear();
   lcd.backlight(); // backlight an machen
+  pixeldraw drawer(&lcd);
+  for (int y=0;y<(8*8);y++) {
+    for (int x=0;x<(16*5);x++) {
+      drawer.setpix(x, y);
+      delay(1);
+    } 
+  }
 }
 
 void loop() {