import time
from machine import Pin

LED1=Pin(1,Pin.OUT)
LED2=Pin(5,Pin.OUT)
LED3=Pin(9,Pin.OUT)
LED4=Pin(13,Pin.OUT)
LED5=Pin(15,Pin.OUT)

while True:
    LED1.value(1)
    time.sleep(0.5)
    LED2.value(1)
    time.sleep(0.5)
    LED3.value(1)
    time.sleep(0.5)
    LED4.value(1)
    time.sleep(0.5)
    LED5.value(1)
    time.sleep(0.5)
    LED1.value(0)
    LED2.value(0)
    LED3.value(0)
    LED4.value(0)
    LED5.value(0)
    time.sleep(1)