from machine import Pin
from utime import sleep

led = Pin(12,Pin.OUT)
i = 0

print ("Hello there! \U0001F601")    

while i < 10:    
    i += 1
    led.on()
    sleep(0.5)
    led.off()
    sleep(0.5)
    print (i)

print ("test finished \U0001F605")