from machine import Pin 
from utime import sleep

S=[Pin(12,Pin.OUT), Pin(23,Pin.OUT), Pin(22, Pin.OUT), Pin(21,Pin.OUT), Pin(19,Pin.OUT), Pin(18, Pin.OUT)]

while True:
    S[1].value(1) 
    sleep(1) 
    S[1].value(0)
    sleep(1)
    S[3].value(1) 
    sleep(1)
    S[3].value(0)
    sleep(1)
    S[5].value(1)
    sleep(1)
    S[5].value(0)
    sleep(1)
    S[0].value(1)
    sleep(1)
    S[0].value(0)
    sleep(1)
    S[2].value(1)
    sleep(1)
    S[2].value(0)
    sleep(1)
    S[4].value(1)
    sleep(1)
    S[4].value(0)
    sleep(1)
    S[6].value(1)
    sleep(1)
    S[6].value(0)
    sleep(1)