from machine import Pin
from time import sleep
led1=Pin(21,Pin.OUT)
while True:
led1.value(1)
sleep(3)
led1.value(0)
sleep(3)
from machine import Pin
from time import sleep
led1=Pin(21,Pin.OUT)
while True:
led1.value(1)
sleep(3)
led1.value(0)
sleep(3)