from machine import Pin
import time

led_list = [10,11,12,13,14]
led_pin_index = []

for i in led_list:
    led_pin_index.append(Pin(i,Pin.OUT))

for a in led_pin_index:
        a.value(0)

while True:
    for a in led_pin_index:
        a.value(not a.value())
        time.sleep(0.05)