Hi @bucknall, I finally found this library for using queues on micropython. However, this library need collections.deque and uasynio.core. 1 from collections.deque import deque 2 from uasyncio.core import sleep I went to the github repository, I downloaded collection.deque but I couldn't find uasynio.core anywhere. I think I'm not importing libraries correctly because I need to modify the line from collections.deque import deque to from collections import deque So now I would like to find the uasyncio.core module to be able to use the queue library ^^ I hope I do not need to open a new thread for this question. If so, I'm sorry ;)