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)
    led2.value(1)
    led3.value(1)
    led4.value(1)
    led5.value(1)
    sleep(0.2)
    led1.value(0)
    led2.value(0)
    led3.value(0)
    led4.value(0)
    led5.value(0)
    sleep(0.2)