#include <AccelStepper.h>

AccelStepper stepper;

int taster2 = 8;
int tasterstatus2 = 0;
int tasterZaehler2 = 0;
int letzterStatus2 = 0;

void setup()
{  
   stepper.setMaxSpeed(100000);
   stepper.setSpeed(10000);	
   pinMode(taster2, INPUT);
   Serial.begin(9600);
}

void loop()
{  
Serial.println(tasterstatus2);
tasterstatus2 = digitalRead(taster2);
 
if(tasterstatus2 != letzterStatus2)
  {
    if (tasterstatus2 == 1) 
    {
      tasterZaehler2++;
    }

    else 
    {
      stepper.runSpeed();
    }
  }

  if (tasterZaehler2 % 2 == 0)
  {
    stepper.stop();
    tasterZaehler2 = 0;
  }

  else 
  {
    stepper.runSpeed();
  }
  letzterStatus2 = tasterstatus2; 
  Serial.println(tasterZaehler2);
  delay(10);
}