diff --git a/YAOCMouse.ino b/YAOCMouse.ino
index 9524c55..a6f36e4 100644
--- a/YAOCMouse.ino
+++ b/YAOCMouse.ino
@@ -5,6 +5,23 @@
 #include <hidboot.h>
 
 
+#define PIN_MOUSE_V    19 // LAN_TX0
+#define PIN_MOUSE_VQ   26 // LAN_RX1
+#define PIN_MOUSE_H    27 // LAN_CRS
+#define PIN_MOUSE_HQ   23 // LAN_MDC
+#define PIN_MOUSE_LBTN 21 // LAN_TXEN
+#define PIN_MOUSE_MBTN 25 // LAN_RX0
+#define PIN_MOUSE_RBTN 17 // LAN_CLK
+
+#define MOUSE_SCALE_MAX 63
+
+const byte mouseStates[4][2] = {
+  {0, 0},
+  {0, 1},
+  {1, 1},
+  {1, 0}
+};
+
 class MouseRptParser : public MouseReportParser
 {
   protected:
@@ -14,41 +31,41 @@ class MouseRptParser : public MouseReportParser
     void OnLeftButtonDown  (MOUSEINFO *mi);
     void OnLeftButtonUp  (MOUSEINFO *mi);
     void OnMiddleButtonDown  (MOUSEINFO *mi);
+    void OnMiddleButtonUp  (MOUSEINFO *mi);
 };
 
 
 void MouseRptParser::OnRightButtonUp  (MOUSEINFO *mi)
 {
-
+  digitalWrite(PIN_MOUSE_RBTN, HIGH);
 };
 
 void MouseRptParser::OnRightButtonDown  (MOUSEINFO *mi)
 {
-
+  digitalWrite(PIN_MOUSE_RBTN, LOW);
 };
 
 void MouseRptParser::OnLeftButtonDown  (MOUSEINFO *mi)
 {
-  digitalWrite(16, LOW);
+  digitalWrite(PIN_MOUSE_LBTN, LOW);
 };
 
 void MouseRptParser::OnLeftButtonUp  (MOUSEINFO *mi)
 {
-  digitalWrite(16, HIGH);
+  digitalWrite(PIN_MOUSE_LBTN, HIGH);
 };
 
 void MouseRptParser::OnMiddleButtonDown  (MOUSEINFO *mi)
 {
-
+  digitalWrite(PIN_MOUSE_MBTN, LOW);
 };
 
-byte mouseStates[4][2] = {
-  {0, 0},
-  {0, 1},
-  {1, 1},
-  {1, 0}
+void MouseRptParser::OnMiddleButtonUp  (MOUSEINFO *mi)
+{
+  digitalWrite(PIN_MOUSE_MBTN, HIGH);
 };
 
+
 bool mouseYworking = false;
 int mouseYTableIndex = 0;
 void amigaYpulse(int8_t count) {
@@ -59,7 +76,7 @@ void amigaYpulse(int8_t count) {
     return; 
 
   mouseYworking = true;
-  byte mapped = map(abs(count), 0, 127, 1, 63);
+  byte mapped = map(abs(count), 0, 127, 1, MOUSE_SCALE_MAX);
   for (byte i = 0; i < mapped; i++)
   {
     if (count < 0) {
@@ -90,7 +107,7 @@ void amigaXpulse(int8_t count) {
   if (count == 0)
     return;
 
-  for (byte i = 0; i < map(abs(count), 0, 127, 1, 63); i++)
+  for (byte i = 0; i < map(abs(count), 0, 127, 1, MOUSE_SCALE_MAX); i++)
   {
     if (count < 0) {
       mouseXTableIndex++;