from machine import Pin
from utime import sleep
led_rojo=Pin(21,Pin.OUT)
led_verde=Pin(4,Pin.OUT)
while True:
print("rojo")
led_rojo.value(1)
sleep(3)
led_rojo.value(0)
sleep(2)
print("verde")
led_verde.value(1)
sleep(3)
led_verde.value(0)
sleep(2)