import board
import digitalio

led = digitalio.DigitalInOut(board.GP17) 
#sukuriamas led objektas susietas su GP17 pin
led.direction = digitalio.Direction.OUTPUT
#nustatoma, kad tai isvesties PIN

button = digitalio.DigitalInOut(board.GP16)
#sukuriamas objektas button ir susiejama su GP16 pin
button.direction = digitalio.Direction.INPUT
#nustatoma, kad tai ivesties pin
button.pull = digitalio.Pull.UP

while True:
    led.value = not button.value