import time
import board
import digitalio

i=0
print("Hello, Raspberry Pi Pico!")

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

while True:
    i=i+1
    print(i)
    led.value = True
    time.sleep(0.5)
    led.value = False
    time.sleep(0.5)