@ajb2k3
Thanks!

So, what is the state of concurrency programming in MicroPython? I see an RFC from 2014 [1] and a thread from the same year [2], but I don't know if this is in MicroPython (like is generators there?)?

The RTOS of Arduino, is to the best of my knowledge, not much useful [3].

Now, anybody who knows about Zephyr and the M5?

[1] RFC: Cooperative concurrency model of choice for MicroPython
[2] uasyncio - asyncio-like cooperative multitasking framework for uPy
[3] Arduino concurrency (Blog note, same disclaimer as above)

I am new to this forum, and have not yet acquired an M5Stack board. I see by [1] that Zephyr has been ported to ESP32 on XTENSA boards. I would very much like to have a running, living Zephyr port on any board I am going to experiment with over the summer. I am used to XMOS boards [2] where concurrency is first order. (It's concurrency I tend to blog about). Would Zephyr be a viable alternative for M5, or are there other, interesting alternatives? Like, I see Loops supported in UIFlow [3]. This seems to remind me of Scratch. But I don't think that's what I am after(?)

[1] Zephyr Supported Boards
[2] See my blog notes (disclaimer: no money, no ads, no gifts with any of my blog notes - just fun and expenses. Also: I have no association with any of the manufacturers's products I some times blog about. I try to be project/technology driven and delve into details. All this since this is my first posting here)
[3] UIFlow loops