diff --git a/gedoens-excel.xlsx b/gedoens-excel.xlsx
new file mode 100644
index 0000000..8300692
Binary files /dev/null and b/gedoens-excel.xlsx differ
diff --git a/sketch_nov03b.ino b/sketch_nov03b.ino
new file mode 100644
index 0000000..02f61e6
--- /dev/null
+++ b/sketch_nov03b.ino
@@ -0,0 +1,126 @@
+#define LOAD 10
+#define DATA 8
+#define CLOCK 9
+
+#define MAX_WIDTH 32
+#define MAX_HEIGHT 40
+
+typedef struct image_t {
+  int width;
+  int height;
+  byte data[MAX_WIDTH * MAX_HEIGHT];
+};
+
+image_t img;
+
+byte get_pixel(image_t* p, int x, int y) {
+  return p->data[y*p->width + x];
+}
+
+byte set_pixel(image_t* p, int x, int y, byte value) {
+  p->data[y*p->width + x] = value;
+}
+
+void setup() {
+  Serial.begin(115200);
+
+  img.width = 32;
+  img.height = 40;
+  
+  // put your setup code here, to run once:
+  byte pixel = 1;
+  for(int y = 0; y < img.height; y++) {
+    pixel = y % 2;
+    for(int x = 0; x < img.width; x++) {
+      set_pixel(&img, x, y, pixel);
+      pixel = !pixel;
+    } 
+  }
+
+  pinMode(DATA,OUTPUT);
+  pinMode(CLOCK,OUTPUT);
+  pinMode(LOAD,OUTPUT);
+}
+
+void send_block(image_t* p, int x, int y) {
+  int order[32][2] = {
+     { 6, 2 }, // 32
+     { 7, 2 }, // 31
+     { 6, 3 }, // 30
+     { 5, 2 }, // 29
+     { 5, 3 }, // 28
+     { 4, 2 }, // 27
+     { 7, 3 }, // 26
+     { 4, 3 }, // 25
+     { 3, 3 }, // 24
+     { 3, 2 }, // 23
+     { 2, 3 }, // 22
+     { 0, 2 }, // 21
+     { 2, 2 }, // 20
+     { 1, 3 }, // 19
+     { 1, 2 }, // 18
+     { 0, 3 }, // 17
+     { 0, 0 }, // 16
+     { 1, 1 }, // 15
+     { 0, 1 }, // 14
+     { 1, 0 }, // 13
+     { 2, 1 }, // 12
+     { 2, 0 }, // 11
+     { 3, 0 }, // 10
+     { 3, 1 }, // 9
+     { 4, 0 }, // 8
+     { 7, 1 }, // 7
+     { 7, 0 }, // 6
+     { 4, 1 }, // 5
+     { 5, 0 }, // 4
+     { 6, 1 }, // 3
+     { 6, 0 }, // 2
+     { 5, 1 } // 1
+  };
+
+  Serial.println("start block");
+  for(int n = 0; n < 32; n++) {
+    int x_offset = order[n][1];
+    int y_offset = order[n][0];
+
+    byte pixel = get_pixel(p, x + x_offset, y + y_offset);
+    Serial.print("x=");
+    Serial.print(x_offset);
+    Serial.print(" y=");
+    Serial.print(y_offset);
+    Serial.print(" pixel=");
+    Serial.println(pixel);
+    
+    
+    digitalWrite(DATA, pixel);
+    clock();
+  } 
+
+  // 33 bit - kein pixel - senden
+  clock();
+}
+
+void clock() {
+    digitalWrite(CLOCK,HIGH);
+    digitalWrite(CLOCK,LOW);
+}
+
+void load() {
+    digitalWrite(LOAD,HIGH);
+    digitalWrite(LOAD,LOW);
+}
+
+void loop() {
+  digitalWrite(DATA, LOW);
+  for(int i = 0; i < 1320; i++) {
+    clock();
+  }
+
+  for(int y = 0; y < img.height; y+=8) {
+    for(int x = 0; x < img.width; x+=4) {
+      send_block(&img, x, y);
+    }
+  }
+  
+  load();
+}