# https://dev.to/blues/a-practical-look-at-pio-on-the-raspberry-pi-pico-50j8

import time
import rp2
from machine import Pin

@rp2.asm_pio(set_init=rp2.PIO.OUT_LOW)
def blink():
    set(pins, 1)
    set(pins, 0)
    wrap()

sm = rp2.StateMachine(0, blink, freq=2000, set_base=Pin(16))

sm.active(1)
time.sleep(30)
sm.active(0)