from machine import Pin
import time
from machine import mem32

veh_rojo= Pin(27, Pin.OUT)
veh_amarillo= Pin(26, Pin.OUT)
veh_verde= Pin(25, Pin.OUT)

peaton_verde= Pin(22, Pin.OUT)
peaton_rojo= Pin(23, Pin.OUT)

GPIO_OUT_REG = 0x3FF44004

while True:
    mem32[GPIO_OUT_REG] = 0b10100000000000000000000000
    time.sleep(3)
    mem32[GPIO_OUT_REG] = 0b100100000000000000000000000
    time.sleep(3)
    mem32[GPIO_OUT_REG] = 0b1000010000000000000000000000
    time.sleep(3)