import time
from machine import Pin

onboard_led = Pin(25, Pin.OUT)
block_led = Pin(14, Pin.OUT)
block_led.value(1)

for _ in range(10):
    block_led.value(0)
    onboard_led.value(1)

    time.sleep(0.5)

    block_led.value(1)
    onboard_led.value(0)

    time.sleep(0.5)

block_led.value(1)
onboard_led.value(1)

time.sleep(1)

block_led.value(0)
onboard_led.value(0)