import audio_lib
import board
import digitalio
import time
import audioio
alt = digitalio.DigitalInOut(board.SPEAKER_ENABLE)
alt.direction = digitalio.Direction.OUTPUT
alt.value = True
sonido = audioio.AudioOut(board.SPEAKER)
N_Mi3 = 330
while True:
    sinusoide = audio_lib.nota(N_Mi3)
    sonido.play(sinusoide, loop=True)
    time.sleep(0.5)
    sonido.stop()
    time.sleep(2)