'''
'''

from machine import Pin
import utime

DIR_PINA = 2
DIR_PINB = 4
STEP_PINA = 3
STEP_PINB = 5
BTTA = 6
BTTB = 7


def setup():
   Pin(STEP_PINA,Pin.OUT)
   Pin(DIR_PINA,Pin.OUT)
   Pin(STEP_PINB,Pin.OUT)
   Pin(DIR_PINB,Pin.OUT)
   Pin(BTTA,Pin.IN)
   Pin(BTTB,Pin.IN)

def main():

    avanzar()


def avanzar():
    
   Pin(DIR_PINA,Pin.OUT).on()
   Pin(DIR_PINB,Pin.OUT).on()
   Pin(STEP_PINA,Pin.OUT).on()
   Pin(STEP_PINB,Pin.OUT).on()
   utime.sleep_ms(5)
   Pin(STEP_PINA,Pin.OUT).off()
   Pin(STEP_PINB,Pin.OUT).off()
   utime.sleep_ms(5)


while True:
    main()