from machine import Pin
from utime import sleep_us
LED_GP16 = machine.Pin(16, Pin.OUT)
LED_GP17 = machine.Pin(17, Pin.OUT)
LED_GP13 = machine.Pin(13, Pin.OUT)
LED_GP10 = machine.Pin(10, Pin.OUT)
LED_GP5 = machine.Pin(5, Pin.OUT)

while True:
 LED_GP16.toggle()
 LED_GP17.toggle()
 LED_GP13.toggle()
 LED_GP10.toggle()
 LED_GP5.toggle()
 sleep_us(1000000)