from machine import Pin
from time import sleep
led1=Pin(12,Pin.OUT)
led2=Pin(14,Pin.OUT)
led3=Pin(27,Pin.OUT)
led4=Pin(26,Pin.OUT)
while True:
led1.value(1)
sleep(0.9)
led2.value(1)
sleep(0.9)
led3.value(1)
sleep(0.9)
led4.value(1)
sleep(0.9)
led1.value(0)
led2.value(0)
led3.value(0)
led4.value(0)
sleep(0.9)
led4.value(1)
sleep(0.9)
led3.value(1)
sleep(0.9)
led2.value(1)
sleep(0.9)
led1.value(1)
sleep(0.9)
led1.value(0)
led2.value(0)
led3.value(0)
led4.value(0)
sleep(0.9)