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diff --git a/core/libraries/Stepper/Stepper.h b/core/libraries/Stepper/Stepper.h
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--- a/core/libraries/Stepper/Stepper.h
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-/*
-  Stepper.h - - Stepper library for Wiring/Arduino - Version 0.4
-  
-  Original library     (0.1) by Tom Igoe.
-  Two-wire modifications   (0.2) by Sebastian Gassner
-  Combination version   (0.3) by Tom Igoe and David Mellis
-  Bug fix for four-wire   (0.4) by Tom Igoe, bug fix from Noah Shibley
-
-  Drives a unipolar or bipolar stepper motor using  2 wires or 4 wires
-
-  When wiring multiple stepper motors to a microcontroller,
-  you quickly run out of output pins, with each motor requiring 4 connections. 
-
-  By making use of the fact that at any time two of the four motor
-  coils are the inverse  of the other two, the number of
-  control connections can be reduced from 4 to 2. 
-
-  A slightly modified circuit around a Darlington transistor array or an L293 H-bridge
-  connects to only 2 microcontroler pins, inverts the signals received,
-  and delivers the 4 (2 plus 2 inverted ones) output signals required
-  for driving a stepper motor.
-
-  The sequence of control signals for 4 control wires is as follows:
-
-  Step C0 C1 C2 C3
-     1  1  0  1  0
-     2  0  1  1  0
-     3  0  1  0  1
-     4  1  0  0  1
-
-  The sequence of controls signals for 2 control wires is as follows
-  (columns C1 and C2 from above):
-
-  Step C0 C1
-     1  0  1
-     2  1  1
-     3  1  0
-     4  0  0
-
-  The circuits can be found at 
-  http://www.arduino.cc/en/Tutorial/Stepper
-*/
-
-// ensure this library description is only included once
-#ifndef Stepper_h
-#define Stepper_h
-
-// include types & constants of Wiring core API
-#include "WConstants.h"
-
-// library interface description
-class Stepper {
-  public:
-    // constructors:
-    Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2);
-    Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4);
-
-    // speed setter method:
-    void setSpeed(long whatSpeed);
-
-    // mover method:
-    void step(int number_of_steps);
-
-    int version(void);
-
-  private:
-    void stepMotor(int this_step);
-    
-    int direction;        // Direction of rotation
-    int speed;          // Speed in RPMs
-    unsigned long step_delay;    // delay between steps, in ms, based on speed
-    int number_of_steps;      // total number of steps this motor can take
-    int pin_count;        // whether you're driving the motor with 2 or 4 pins
-    int step_number;        // which step the motor is on
-    
-    // motor pin numbers:
-    int motor_pin_1;
-    int motor_pin_2;
-    int motor_pin_3;
-    int motor_pin_4;
-    
-    long last_step_time;      // time stamp in ms of when the last step was taken
-};
-
-#endif
-