from machine import Pin
from time import sleep_ms

freio = Pin(6, Pin.IN, Pin.PULL_DOWN)

chave = Pin (7, Pin.IN)

led = [Pin(1, Pin.OUT),
       Pin(2, Pin.OUT),
       Pin(3, Pin.OUT),
       Pin(4, Pin.OUT),
       Pin(5, Pin.OUT)]

while True:
  if freio.value() == 1:
    for luz in led:
        luz.on()
      
  else:
    if chave.value() == 1:
      for luz in led:
        luz.on()
        sleep_ms(150)
        
      for luz in led:
          luz.off()
          sleep_ms(50)
    else:
      for luz in led[::-1]:
        luz.on()
        sleep_ms(150)
        
      for luz in led[::-1]:
          luz.off()
          sleep_ms(50)