from machine import Pin, Timer
from time import sleep

led = Pin(2, Pin.OUT)
led0 = Pin(26, Pin.OUT)
timer = Timer(0)
toggle = 1
def blink(timer):
    global toggle
    if toggle == 1:
        led.value(0)
        toggle = 0
    else:
        led.value(1)
        toggle = 1
timer.init(freq=10, mode=Timer.PERIODIC, callback=blink)


while True:
  led0.value(not led0.value())
  sleep(0.2)