AFAIK C/C++ does not have a coroutine structure built-in to the language. I do see a few attempts to define a coroutine system for Arduino C/C++ using macros and ‘Duff’s device’ but I find the resulting code rather ugly and hard to read.

There are a number of libraries of task schedulers that have been written for Arduino C/C++ but I don’t know if any of them have gained any acceptance as the ‘right way to do it’.

Hi.
Thanks for noticing.
It’s fixed now.
Regards,
Sara

Define coroutine function

async def blink_blue_led():
while True:
blue_led.value(not blue_led.value())
await asyncio.sleep(1)

The line “await asyncio.sleep(1)” should have a sleep time of 2.0 Sec to agree with the description Green LED: GPIO 14 >> blinks every two seconds;

Note: The code snippet in the section “How the Code Works” shows the correct value.

Hi.
Not yet.
I plan to write something similar using Arduino IDE.
Regards,
Sara

Create and run the event loop

loop = asyncio.get_event_loop()
loop.create_task(main()) # Create a task to run the main function
loop.run_forever() # Run the event loop indefinitely

Is helpful as it shows what is happening in the background. In recent examples you now see a “one-liner”:

asyncio.run(main())