from machine import Pin
import time
led1 = Pin(23,Pin.OUT)
led2 = Pin(22,Pin.OUT)
led3 = Pin(21,Pin.OUT)
led4 = Pin(19,Pin.OUT)
led5 = Pin(18,Pin.OUT)

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