import machine
import utime
led = machine.Pin(15, machine.Pin.OUT) # Set GPIO 15 as an output pin
while True:
    led.value(1) 	#Turns the LED on
    utime.sleep(1)	# Keep the LED on for 1 second
    led.value(0) 	# Turn off the LED
    utime.sleep(0.5)	 # Keep the LED off for 0.5 seconds