import machine 
import time 

# Definition der Pinbelegung

d1 = machine.Pin(19, machine.Pin.OUT) 
d2 = machine.Pin(18, machine.Pin.OUT) 
d3 = machine.Pin(17, machine.Pin.OUT) 
d4 = machine.Pin(16, machine.Pin.OUT) 


class Stepper():
  

  def move(direction='counterclockwise'):
      pins=[d1,d2,d3,d4]
      if direction=='clockwise':
          pins.reverse()

      for steps in range(250):
          for i in pins:
              i.value(1); time.sleep(0.005); i.value(0)
          steps+=1
          

move()
move('clockwise')