from machine import Pin  
from utime import sleep  

led = Pin(5, Pin.OUT)

# LED blink pattern: on for a brief moment, then off for 1 second
def blink_led(times, on_time=0.3, off_time=0.7):
    for _ in range(times):
        led.on()
        sleep(on_time)
        led.off()
        sleep(off_time)

# Blink the LED 10 times
blink_led(10)

# Ensure LED is off after blinking
led.off()