from machine import Pin
from time import sleep_ms
from neopixel import NeoPixel

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

chave = Pin (7, Pin.IN)

led = NeoPixel (Pin(5), 5)

while True:
  if freio.value() == 1:
    for p in range(len(led)):
        led[p] = (255, 0, 0)
    led.write()
    
  else:
      
    if chave.value() == 1:
      for p in range(len(led)):
        led[p] = (255, 255, 0)
        led.write()
        sleep_ms(150)
        
      for p in range(len(led)):
        led[p] = (0, 0, 0)
        led.write()
        sleep_ms(50)
    else:
      for p in range(len(led)-1,-1,-1):
        led[p] = (255, 255, 0)
        led.write()
        sleep_ms(150)
        
      for p in range(len(led)-1,-1,-1):
        led[p] = (0, 0, 0)
        led.write()
        sleep_ms(50)