from machine import Pin
from time import sleep
led = Pin(0,Pin.OUT)
led1 = Pin(1,Pin.OUT)
led2 = Pin(2,Pin.OUT)
while True:
    led.value(1)
    sleep(2)
    led.value(0)
    
    led1.value(1)
    sleep(2)
    led1.value(0)
    led2.value(1)
    sleep(2)
    led2.value(0)