from time import sleep
from machine import Pin

led = Pin(9, Pin.OUT, value=0)
btn = Pin(6, Pin.IN, Pin.PULL_UP)

while True:
  try:
    if btn.value() == 0:
      led.toggle()
      print(f"LED: {led.value()}")
      sleep(0.2)
    else:
      sleep(0.01)
  except KeyboardInterrupt:
    break
led.off()
print("Finished.")