from machine import Pin
from time import sleep

e_red=Pin(23,Pin.OUT)
e_yellow=Pin(22,Pin.OUT)
e_green=Pin(21,Pin.OUT)

w_red=Pin(14,Pin.OUT)
w_yellow=Pin(12,Pin.OUT)
w_green=Pin(13,Pin.OUT)

n_red=Pin(33,Pin.OUT)
n_yellow=Pin(25,Pin.OUT)
n_green=Pin(26,Pin.OUT)

s_red=Pin(5,Pin.OUT)
s_yellow=Pin(18,Pin.OUT)
s_green=Pin(19,Pin.OUT)

while True:
    e_red.on()
    w_red.on()
    n_green.on()
    s_green.on()
    sleep(5)
    w_red.off()
    e_red.off()
    e_yellow.on()
    w_yellow.on()
    sleep(5)
    e_yellow.off()
    w_yellow.off()
    n_green.off()
    s_green.off()
    n_red.on()
    s_red.on()
    e_green.on()
    w_green.on()
    sleep(5)
    n_yellow.on()
    s_yellow.on()
    n_red.off()
    s_red.off()
    sleep(5)
    n_yellow.off()
    s_yellow.off()
    e_green.off()
    w_green.off()