from machine import Pin # to be able to work with the hardware
from time import sleep  # to add delays in the program


LED_PIN = Pin(25, Pin.OUT)


# continuously blink the onboard LED for an interval of 1 sec while the board has power
while True:
    LED_PIN.on()    # turn on LED
    sleep(1)        # wait for 1 sec
    LED_PIN.off()   # turn off LED
    sleep(1)        # wait for 1 sec