import uasyncio as asyncio
from machine import Pin

LED1 = Pin(2, Pin.OUT)
LED2 = Pin(3, Pin.OUT)

async def task1():
    while True:
        print("task1 executing....")
        await asyncio.sleep(1)

        LED1.value(1)
        await asyncio.sleep(1)
        LED1.value(0)
        await asyncio.sleep(1)

async def task2():
    while True:
        print("task2 executing....")
        await asyncio.sleep(2)

        LED2.value(1)
        await asyncio.sleep(0.25)
        LED2.value(0)
        await asyncio.sleep(0.25)

loop = asyncio.get_event_loop()

loop.create_task(task1())
loop.create_task(task2())

loop.run_forever()