// Nadia Martha Lefi 22.11.5140
#include <Stepper.h>

const int stepsPerRevolution = 200;  

Stepper myStepper(stepsPerRevolution, 25, 23, 22, 24);

void setup() {
 
  myStepper.setSpeed(10);
 
}

void loop() {
  
  myStepper.step(50);
  delay(500);

  myStepper.step(50);
  delay(500);

  myStepper.step(-100);
  delay(500);

  myStepper.step(-100);
  delay(500);
}