STPB-2 Control Stepper motor 28BYj-48 with Arduino and 2 push buttons

Project Video
Project Details

This is the Arduino code to control the 28BYj-48 Stepper with 2 push buttons to control direction CW, CCW
by keeping the push button switch depressed.

Project Code

 * This is Arduino code to control 28BYj-48 wiht ULN2003 board using
 2 push buttons.   CW and CCW must be kept pressed to make the motor move
 * Written by Ahmad Shamshiri for Robojax
 * on April 18, 2020 at 19:59 in Ajax, Ontario, Canada
 Watch the video instruction for this sketch:
More videos and codes
 STPB-1 Control Stepper 28BYJ-48 Push buttons using Arduino code CCW, CW STOP STPB-1
 STPB-2 Controlling Position of 28BYJ-48 Stepper Motor with 2 Push buttons STPB-2
 STPB-3 Controlling ONE Revolution of 28BYJ-48 Stepper Motor with 2 Push buttons STPB-3
 STPB-4 Send 28BYJ-48 Stepper Moor to any Angle  with 3 Push buttons STPB-4 CW, CCW and STOP
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 * Code is available at

 * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been download from
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see . 


int Pin1 = 10;//IN1 is connected to 10 
int Pin2 = 11;//IN2 is connected to 11  
int Pin3 = 12;//IN3 is connected to 12  
int Pin4 = 13;//IN4 is connected to 13 
int switchCW  =2;//define input pin for CW push button
int switchCCW =3;//define input pin for CCW push button

int pole1[] ={0,0,0,0, 0,1,1,1, 0};//pole1, 8 step values
int pole2[] ={0,0,0,1, 1,1,0,0, 0};//pole2, 8 step values
int pole3[] ={0,1,1,1, 0,0,0,0, 0};//pole3, 8 step values
int pole4[] ={1,1,0,0, 0,0,0,1, 0};//pole4, 8 step values

int poleStep = 0; 
int  dirStatus = 3;// stores direction status 3= stop (do not change)

void setup() 
  //Robojax Stepper Motor Code STPB-2
 pinMode(Pin1, OUTPUT);//define pin for ULN2003 in1 
 pinMode(Pin2, OUTPUT);//define pin for ULN2003 in2   
 pinMode(Pin3, OUTPUT);//define pin for ULN2003 in3   
 pinMode(Pin4, OUTPUT);//define pin for ULN2003 in4   

 void loop() 
  //Robojax Stepper Motor Code STPB-2
  if(digitalRead(switchCCW) == LOW) 
    dirStatus =1;
  }else if(digitalRead(switchCW) == LOW)
   dirStatus  = 2;  
    dirStatus =3; 
 if(dirStatus ==1){ 
 }else if(dirStatus ==2){ 
//Robojax Stepper Motor Code STPB-2
}// loop

 * @brief sends signal to the motor
 * @param "c" is integer representing the pol of motor
 * @return does not return anything
 * code June 2019
void driveStepper(int c)
  //Robojax Stepper Motor Code STPB-2
     digitalWrite(Pin1, pole1[c]);  
     digitalWrite(Pin2, pole2[c]); 
     digitalWrite(Pin3, pole3[c]); 
     digitalWrite(Pin4, pole4[c]);   
}//driveStepper end here

Required File(s)