diff --git a/Step_er.h b/Step_er.h
index 6bf76ce..321a3c1 100644
--- a/Step_er.h
+++ b/Step_er.h
@@ -1,46 +1,46 @@
-#ifndef Step_er
-#define Step_er
-
-#include "arduino.h"
-
-#define WAVE_DRIVE 0
-#define FULL_STEP 1
-#define HALF_STEP 2
-
-class Step_er {
-  public:
-    
-    Step_er(int mode);
-    void attach(int IN1, int IN2, int IN3, int IN4);
-    void release();
-    void resetTo(int btn, boolean dir=true);
-    void step_move(int steps, boolean dir=true);
-    void ang_move(float ang, boolean dir=true);
-    void turn(int turns, boolean dir=true);
-    void one(boolean dir=true);
-    
-  private:
-
-    void SetDirection();
-    void Stepping(int xw);
-
-    float ang_to_step(float ang);
-    
-    int _IN1, _IN2, _IN3, _IN4;
-    int _mode;
-    int _Smax;
-    int _curStep = 0;
-    int _step, _stepLeft;
-    int _vel;
-    int _turns;
-    int _modes[3][8][4] = {
-                          {{LOW, LOW, LOW, HIGH},{LOW, LOW, HIGH,LOW},{LOW, HIGH, LOW, LOW},{HIGH, LOW, LOW, LOW},{LOW, LOW, LOW, HIGH},{LOW, LOW, HIGH,LOW},{LOW, HIGH, LOW, LOW},{HIGH, LOW, LOW, LOW}},
-                          {{LOW, LOW, HIGH, HIGH},{LOW, HIGH, HIGH, LOW},{HIGH, HIGH, LOW, LOW},{HIGH, LOW, LOW, HIGH},{LOW, LOW, HIGH, HIGH},{LOW, HIGH, HIGH, LOW},{HIGH, HIGH, LOW, LOW},{HIGH, LOW, LOW, HIGH}},
-                          {{LOW, LOW, LOW, HIGH},{LOW, LOW, HIGH, HIGH},{LOW, LOW, HIGH, LOW},{LOW, HIGH, HIGH, LOW},{LOW, HIGH, LOW, LOW},{HIGH, HIGH, LOW, LOW},{HIGH, LOW, LOW, LOW},{HIGH, LOW, LOW, HIGH}}
-                          };
-    boolean _dir;
-    unsigned long _ltime = 0;
-    unsigned long _curMils;
-};
-
+#ifndef St
+#define St
+
+#include "arduino.h"
+
+#define WAVE_DRIVE 0
+#define FULL_STEP 1
+#define HALF_STEP 2
+
+class Step_er {
+  public:
+    
+    Step_er(int mode);
+    void attach(int IN1, int IN2, int IN3, int IN4);
+    void release();
+    void resetTo(int btn, boolean dir=true);
+    void step_move(int steps, boolean dir=true);
+    void ang_move(float ang, boolean dir=true);
+    void turn(int turns, boolean dir=true);
+    void one(boolean dir=true);
+    
+  private:
+
+    void SetDirection();
+    void Stepping(int xw);
+
+    float ang_to_step(float ang);
+    
+    int _IN1, _IN2, _IN3, _IN4;
+    int _mode;
+    int _Smax;
+    int _curStep = 0;
+    int _step, _stepLeft;
+    int _vel;
+    int _turns;
+    int _modes[3][8][4] = {
+                          {{LOW, LOW, LOW, HIGH},{LOW, LOW, HIGH,LOW},{LOW, HIGH, LOW, LOW},{HIGH, LOW, LOW, LOW},{LOW, LOW, LOW, HIGH},{LOW, LOW, HIGH,LOW},{LOW, HIGH, LOW, LOW},{HIGH, LOW, LOW, LOW}},
+                          {{LOW, LOW, HIGH, HIGH},{LOW, HIGH, HIGH, LOW},{HIGH, HIGH, LOW, LOW},{HIGH, LOW, LOW, HIGH},{LOW, LOW, HIGH, HIGH},{LOW, HIGH, HIGH, LOW},{HIGH, HIGH, LOW, LOW},{HIGH, LOW, LOW, HIGH}},
+                          {{LOW, LOW, LOW, HIGH},{LOW, LOW, HIGH, HIGH},{LOW, LOW, HIGH, LOW},{LOW, HIGH, HIGH, LOW},{LOW, HIGH, LOW, LOW},{HIGH, HIGH, LOW, LOW},{HIGH, LOW, LOW, LOW},{HIGH, LOW, LOW, HIGH}}
+                          };
+    boolean _dir;
+    unsigned long _ltime = 0;
+    unsigned long _curMils;
+};
+
 #endif