diff --git a/arduino_micro_code/arduino_micro_code.ino b/arduino_micro_code/arduino_micro_code.ino
index 3d70867..26378e3 100644
--- a/arduino_micro_code/arduino_micro_code.ino
+++ b/arduino_micro_code/arduino_micro_code.ino
@@ -1,40 +1,169 @@
 
-
+#include <Keyboard.h>
 #include <SoftwareSerial.h>
 
+// Setup ---------------------------------------------
+
 int SoftSerialRX = 8;
 int SoftSerialTX = 9;
-int lastRead = 0;
 
+// Types ---------------------------------------------
+
+#define KEY_F13 0xF0 // 0x68 + 0x88
+#define KEY_F14 0xF1 // 0x69 + 0x88
+#define KEY_F15 0xF2 // 0x6A + 0x88
+#define KEY_F16 0xF3 // 0x6B + 0x88
+#define KEY_F17 0xF4 // 0x6C + 0x88
+#define KEY_F18 0xF5 // 0x6D + 0x88
+
+enum parse_mode{
+  none,
+  regular_key,
+  special_key,
+  trackball
+};
+
+// Globals -------------------------------------------
+
+parse_mode ParseMode;
 SoftwareSerial KeyboardSerial(SoftSerialRX, SoftSerialTX);
+unsigned long time_since_last_loop;
+bool shift;
+
+// Functions -----------------------------------------
 
 void setup() {
+  digitalWrite(SoftSerialTX, HIGH);
   pinMode(SoftSerialRX, INPUT);
   pinMode(SoftSerialTX, OUTPUT);
   Serial.begin(2400);
+  Keyboard.begin();
+  ParseMode = parse_mode::none;
   KeyboardSerial.begin(2400);
   while (!Serial) {
     ;
   }
+  time_since_last_loop = millis();
+  shift = false;
+}
+
+void parseRegularKey(unsigned long v)
+{
+  char result;
+  bool parsed = false;
+  if ((v & 32) == 32)
+  {
+    shift = true;
+  }
+  else
+  {
+    shift = false;
+  }
+  if (v <= 126)
+  { // main keyboard
+    result = v;
+    parsed = true;
+  }
+  // A few keys that need some adjustments to match their label.
+  if (v == 13) result = '\n';
+  if (v == 94) result = '^';
+  if (v == 126) result = '~';
+  // tab
+  if (v == 129){ result = 9; shift = false; parsed = true; }
+  // shift+tab
+  if (v == 130)
+  {
+    Keyboard.press(KEY_LEFT_SHIFT);
+    Keyboard.press(KEY_TAB);
+    parsed = false;
+  }
+  if (parsed == true)
+  {
+    Keyboard.print(result);
+  }
+}
+
+void parseSpecialKey(unsigned long v)
+{
+  switch(v)
+  {
+    case 49:
+      Keyboard.press(KEY_HOME);
+      break;
+    case 50: // insert line
+      Keyboard.write(KEY_HOME);
+      Keyboard.write(KEY_RETURN);
+      Keyboard.write(KEY_UP_ARROW);
+      break;
+    case 51: // delete line (using the vim way for this)
+             // non-vim people might want to do:
+             // END-SHIFT-HOME-BS or something...
+      Keyboard.write(KEY_ESC);
+      Keyboard.write('d');
+      Keyboard.write('d');
+      Keyboard.write('i');
+      break;
+    case 53: // insert char - using this as regular insert.
+      Keyboard.write(KEY_INSERT);
+      break;
+    case 54: // delete char - using this as regular delete.
+      Keyboard.write(KEY_DELETE);
+      break;
+    case 48: // up / down arrow (they send the same keycode?!)
+      Keyboard.write(KEY_UP_ARROW);
+      break;
+    case 120:
+      Keyboard.write(KEY_RIGHT_ARROW);
+      break;
+    case 126:
+      Keyboard.write(KEY_LEFT_ARROW);
+      break;
+  }
+  // F1..F12
+  if ((v >= 86) && (v <= 97))
+  {
+    Keyboard.write(v + 108);
+  }
+  if (v == 98) Keyboard.write(KEY_F13);
+  if (v == 99) Keyboard.write(KEY_F14);
+  if (v == 100) Keyboard.write(KEY_F14);
+  // the 'cancel' key we'll use as ESC key, since there
+  // is no actual key labeled escape.
+  if (v == 101) Keyboard.write(KEY_ESC);
 }
 
 void loop() {
-  
+  KeyboardSerial.listen();
   if (KeyboardSerial.available()) 
   {
-    Serial.println(KeyboardSerial.read(), BIN);
+    unsigned long v = KeyboardSerial.read();
+    switch (v)
+    {
+      case 0xA8:
+        ParseMode = parse_mode::regular_key;
+        Serial.println("Regular key");
+        break;
+      case 0xA1:
+        ParseMode = parse_mode::special_key;
+        Serial.println("Special key");
+        break;
+      default:
+        if (ParseMode == parse_mode::regular_key)
+        {
+          parseRegularKey(v);
+        }
+        else if (ParseMode == parse_mode::special_key)
+        {
+          parseSpecialKey(v);
+        }
+        break;
+    }
+    Serial.println(v, BIN);
+    Serial.println(v, DEC);
   }
-  if (Serial.available())
+  else
   {
-    Serial.println("O");
-    KeyboardSerial.write(Serial.read());
+    Keyboard.releaseAll();
   }
-
-  /*
-  int v = digitalRead(SoftSerialRX);
-  if (v != lastRead){
-    Serial.write(v == 0 ? "0" : "1");
-    lastRead = v;
-  }
-  */
+  delay(20);
 }