import board
import digitalio
import neopixel
led = neopixel.NeoPixel(board.D8, 10, brightness=0.3)
pulsA = digitalio.DigitalInOut(board.BUTTON_A)
pulsA.direction = digitalio.Direction.INPUT
pulsA.pull = digitalio.Pull.DOWN
pulsB = digitalio.DigitalInOut(board.BUTTON_B)
pulsB.direction = digitalio.Direction.INPUT
pulsB.pull = digitalio.Pull.DOWN
marcha = False
while True:
    if pulsB.value:
        marcha = False
    if pulsA.value and not pulsB.value:
        marcha = True
    if marcha:
        led[0] = (255, 0, 0)
    else:
        led[0] = (0, 0, 0)