from machine import Pin
from time import sleep

led1 = Pin(1, Pin.OUT)
led2 = Pin(2, Pin.OUT)
led3 = Pin(3, Pin.OUT)
led4 = Pin(4, Pin.OUT)
led5 = Pin(5, Pin.OUT)

while True:
    led1.value(1)
    sleep(0.3)
    led1.value(0)
    led2.value(1)
    sleep(0.3)
    led2.value(0)
    led3.value(1)
    sleep(0.3)
    led3.value(0)
    led4.value(1)
    sleep(0.3)
    led4.value(0)
    led5.value(1)
    sleep(0.3)
    led5.value(0)
    led4.value(1)
    sleep(0.3)
    led4.value(0)
    led3.value(1)
    sleep(0.3)
    led3.value(0)
    led2.value(1)
    sleep(0.3)
    led2.value(0)