olgamill55 Hello, I am having trouble getting these APIs to work : k_queue_append (), k_queue_init(), etc. I am using https://github.com/zephyrproject-rtos/zephyr/blob/main/tests/kernel/queue/src/test_queue_contexts.c as the prime example. However, this example is for ZTEST, but I was looking for a smaller code snippet that uses queues. I also need to use tasks (and I have them), so the queues meant to be for inter-task communication. My other alternative is to use messages queues defined in https://developer.nordicsemi.com/nRF_Connect_SDK/doc/0.3.0/zephyr/kernel/data_passing/message_queues.html (I have not tried them yet). Any ideas are appreciated!