import time
import board
import digitalio
#Se definen los pins de los leds 
led_pins=[
    board.GP0,board.GP1,board.GP2,board.GP3,board.GP4,
    board.GP5,board.GP6,board.GP7
]
#Ajusta los pins como salidas digitales 
leds =[digitalio.DigitalInOut(pin) for pin in led_pins]
for led in leds: 
    led.direction= digitalio.Direction.OUTPUT

#función para actualizar los leds basado en el valor del contador binario de 8 Bits
def update_leds(counter):
    for i in range (8):
        leds[i].value = (counter >>i)& 0b01 

#programa principal
counter=0

#while True:
for counter in range(0,256): 
    update_leds(counter)
    time.sleep(0.0390625)
    #counter=(counter+1)% 256
    print(counter)
  #  if counter==255:
   #     break