import _thread
from machine import Pin
import time

cero = Pin(15, Pin.OUT)
uno = Pin(2, Pin.OUT)
dos = Pin(0, Pin.OUT)
tres = Pin(4, Pin.OUT)
cuatro = Pin(16, Pin.OUT)
cinco = Pin(17, Pin.OUT)
seis = Pin(5, Pin.OUT)
siete = Pin(18, Pin.OUT)

leds = [cero, uno, dos, tres, cuatro, cinco, seis, siete]

def derecha():
    while True:
        for elementos in leds[7:3:-1]:
            elementos.value(1)
            time.sleep(1)
            elementos.value(0)
            time.sleep(1)
            print("Derecha")

_thread.start_new_thread(derecha,())

def izquierda():
    while True:
        for elementos in leds[0:4:1]:
            elementos.value(1)
            time.sleep(0.2)
            elementos.value(0)
            time.sleep(0.2)
            print("Izquierda")
while True:
    izquierda()
    time.sleep(1)

if __name__ == ("__main__"): 
    main()