diff --git a/N64Controller/N64Controller.cpp b/N64Controller/N64Controller.cpp
index 62ee1ee..fba58fe 100644
--- a/N64Controller/N64Controller.cpp
+++ b/N64Controller/N64Controller.cpp
@@ -23,16 +23,12 @@
 #define N64_PINB_LOW DDRB |= pincode
 #define N64_PINB_QUERY (PINB & pincode)
 
-N64Controller::N64Controller() {
+N64Controller::N64Controller(unsigned char serialPin) {
+  if(serialPin > 13)
+    serialPin = 2;
+  n64_PIN = serialPin;
 }
 
-N64Controller::N64Controller(int serialPin) {
-  n64_PIN = serialPin;
-}
-void N64Controller::begin(int serialPin) {
-  n64_PIN = serialPin;
-  begin();
-}
 void N64Controller::begin() {
   // Communication with N64 controller controller on this pin
   // Don't remove these lines, we don't want to push +5V to the controller
diff --git a/N64Controller/N64Controller.h b/N64Controller/N64Controller.h
index 4601e27..db089c8 100644
--- a/N64Controller/N64Controller.h
+++ b/N64Controller/N64Controller.h
@@ -41,9 +41,7 @@
 
 class N64Controller {
   public:
-    N64Controller();
-    N64Controller(int serialPin); // first thing to call
-    void begin(int serialPin);
+    N64Controller(unsigned char serialPin); // first thing to call
     void begin();                     // second thing to call
     void update();                    // then update always and get button info
                                       // consider to have a delay instead of
@@ -68,7 +66,7 @@ class N64Controller {
     void print_N64_status();
   private:
     void set_up();
-    int n64_PIN; // might also be set by constructor or begin()
+    char n64_PIN; // might also be set by constructor or begin()
     char n64_pincode;
     bool n64_first_register; // PIN0-7: DDRD PIN8-13: DDRB