feat(esp32c61): Add support for ESP32-C61 #12019
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👋 Hello lucasssvaz, we appreciate your contribution to this project! 📘 Please review the project's Contributions Guide for key guidelines on code, documentation, testing, and more. 🖊️ Please also make sure you have read and signed the Contributor License Agreement for this project. Click to see more instructions ...
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lucasssvaz
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Type: Chip support
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Test Results 76 files 76 suites 16m 41s ⏱️ Results for commit b26343a. ♻️ This comment has been updated with latest results. |
me-no-dev
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Nov 12, 2025
Co-authored-by: Jan Procházka <90197375+P-R-O-C-H-Y@users.noreply.github.com>
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Memory usage test (comparing PR against master branch)The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.
Click to expand the detailed deltas report [usage change in BYTES]
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Description of Change
This pull request adds support for the ESP32-C61 target across the Arduino-ESP32 codebase. The changes ensure that ESP32-C61 is correctly handled in build scripts, documentation, hardware abstraction, and board-specific logic. Additionally, the CPU frequency management code is refactored for better maintainability and extensibility.
ESP32-C61 Support
.github/scripts/find_all_boards.sh,.github/workflows/build_component.yml) and ensured it is properly skipped where required for library builds. [1] [2] [3] [4]README.md) to mention ESP32-C61 support and its requirements.HardwareSerial.h, and updated related logic for RX/TX pin mappings. [1] [2]Esp.cpp, including magic flash frequency mapping and register usage. [1] [2] [3]CPU Frequency Management Refactor
esp32-hal-cpu.cto introduce a generic clock source name lookup and supported frequency reporting, improving clarity and extensibility for all ESP32 targets. [1] [2] [3]General Board Handling Improvements
Code Organization and Maintainability
Minor Fixes and Cleanups
Test Scenarios
Locally
Related links
espressif/esp32-arduino-lib-builder#331