#include <AccelStepper.h>


#define dir 6
#define step 5
#define dir1 4
#define step1 3

AccelStepper stepper1(1,5,6);
AccelStepper stepper2(1,3,4);



void setup() {
  stepper1.setMaxSpeed(50);
  stepper2.setMaxSpeed(50);
  stepper1.setAcceleration(1000);
  stepper2.setAcceleration(1000);
  Serial.begin(9600);
  
  

}


void loop() {

  forward(1);
 
  backward(2);

}


int forward(int a){
  if (a==1)
  {
  stepper1.moveTo(100);
  stepper1.run();
  }
  else 
  {
  stepper2.moveTo(100);
  stepper2.run();
  }

  
}
int backward(int b)
{
  if(b==1){
    stepper1.moveTo(-100);
  stepper1.run();
  }
  else{

  stepper2.moveTo(-100);
  stepper2.run();
  }
  
}