Question 1

How does MicroPython async compare to CPython asyncio?

Accepted Answer

MicroPython's asyncio is a optimized subset for embedded systems, with a smaller footprint but fewer features like full task groups. This project provides tutorials and drivers tailored to that subset, focusing on hardware efficiency.

Question 2

How to write an async driver for a sensor in MicroPython?

Accepted Answer

Use the hardware drivers in the v3 directory as examples—they demonstrate non-blocking I/O patterns for interfaces like SPI or UART. The tutorials also cover best practices for creating custom async drivers.

Question 3

Is uasyncio V2 still supported in this repo?

Accepted Answer

No, the README states that uasyncio V2 is obsolete and has been removed. All resources are now focused on asyncio V3, which is included in recent MicroPython firmware builds.

Question 4

What microcontrollers work best with this async library?

Accepted Answer

It targets bare-metal boards like ESP32, Pyboard, or RP2040 where asyncio V3 is integrated. The drivers and demos are designed for these platforms, but check firmware compatibility first.

Question 5

Can I use async for real-time control in MicroPython?

Accepted Answer

While async improves concurrency for I/O tasks, it may not suit hard real-time needs due to event loop latency. For strict timing, consider threading or external interrupts as discussed in the concurrency documents.

Question 6

How to handle errors in async MicroPython code?

Accepted Answer

The tutorials cover error handling patterns, such as using try-except in coroutines and proper task cancellation. Examples in the v3 directory show robust error management for hardware interactions.

Asynchronous GPS driver

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