QUERY · ISSUE

Delete / Unallocate RMT Driver on ESP32

openby onlyparthumanopened 2023-01-28updated 2025-12-09

enhancement

The current RMT functionality in Micropython for the ESP32 appears to have no method to uninstall an RMT driver. This makes it challenging to re-configure RMT on the fly or reuse those resources. Calls to del() of an RMT object to not appear to uninstall the driver either. Recommend creating a RMT.del() function to implement the Espressif rmt_del_channel() function to free the resources

CANDIDATE · PULL REQUEST

esp32: Update FIXME on RMT module.

mergedby elvis-epxopened 2025-12-27updated 2026-01-21

port-esp32

Summary

Update FIXME comment on esp32_rmt.c, mentioning that ESP-IDF 5.5.2 fixes the underlying issue.

Testing

No testing required since this does not change code.

Assessment

Q Qwen · high

The query (Issue #10609) requests a new feature: a del() method for the RMT driver to deallocate resources and allow reconfiguration. The candidate (PR #18611) is a documentation update that clarifies a FIXME comment regarding an Interrupt WDT panic issue fixed in ESP-IDF 5.5.2. While both items concern the ESP32 RMT module, the PR does not implement the requested del() functionality or address the resource deallocation feature request. It only documents a known issue and its resolution in the underlying IDF.

Suggested action

Keep the issue open. The PR addresses a specific bug/limitation in the current implementation but does not provide the requested feature (a `del()` method). The maintainer should consider implementing the feature request separately or linking the issue to a future enhancement task.

Delete / Unallocate RMT Driver on ESP32

esp32: Update FIXME on RMT module.

Summary

Testing

Keyboard