Cooperative Multitasking in CircuitPython with asyncio @circuitpython

CircuitPython now has preliminary support for cooperative multitasking, using the asyncio library and the async and await language keywords. The asyncio library is a part of CPython, the host-computer version of Python. MicroPython also supplies a version of asyncio, and that version has been adapted for use in CircuitPython.

Cooperative multitasking is a style of programming in which multiple tasks take turns running. Each task runs until it needs to wait for something, or until it decides it has run for long enough and should let another task run.

Check out the new guide Cooperative Multitasking in CircuitPython, which explains how to use asyncio to run tasks concurrently, and provides a number of simple examples.

To use asyncio, you’ll need CircuitPython 7.1.0-beta.0 or later, downloadable from

We welcome comments on this guide and the new features. You can give anonymous feedback using the Feedback link in the guide, or start a discussion in Discord or the forums.

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  1. Installed, upgraded, pipped, circupped…
    ‘asyncio is not a known circuitpython library’

    Running Circuitpython 7.1.0-beta.1. on Raspberry pi pico.

  2. The library is not in the bundle right now due to a bundling issue. You can get it from for now. I’ll make that clearer in the guide, thanks.

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