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HighDoping

Description of Change

LED flash do not work on some boards with esp32-cam example because the pin is always set to 22. This PR changes the pin definition to be set dynamically by setupLedFlash().

Tests scenarios

I have tested my Pull Request on Arduino-esp32 core v3.2.0 with AI Thinker ESP32-CAM

@HighDopingHighDoping requested a review from a team as a code owner June 14, 2025 01:44
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Some issues found for the commit messages in this PR:

  • the commit message "fix(example): Remove face detection description as no longer supported.":
    • summary should not end with a period (full stop)
  • the commit message "fix(example): add camera_config.h and enable LED FLASH based on board model.":
    • summary should not end with a period (full stop)

Please fix these commit messages - here are some basic tips:

  • follow Conventional Commits style
  • correct format of commit message should be: <type/action>(<scope/component>): <summary>, for example fix(esp32): Fixed startup timeout issue
  • allowed types are: change,ci,docs,feat,fix,refactor,remove,revert,test
  • sufficiently descriptive message summary should be between 10 to 72 characters and start with upper case letter
  • avoid Jira references in commit messages (unavailable/irrelevant for our customers)

TIP: Install pre-commit hooks and run this check when committing (uses the Conventional Precommit Linter).

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@P-R-O-C-H-YP-R-O-C-H-Y added Type: ExampleIssue is related to specific example.Status: Review neededIssue or PR is awaiting reviewlabels Jun 16, 2025
@P-R-O-C-H-YP-R-O-C-H-Y changed the title fix(esp32): led flash not working if not using default model in esp32-cam example. fix(example): led flash not working if not using default model in camera example. Jun 16, 2025
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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.

MemoryFLASH [bytes]FLASH [%]RAM [bytes]RAM [%]
TargetDECINCDECINCDECINCDECINC
ESP32S30⚠️+320.000.000⚠️+160.00⚠️+0.03
ESP32S20⚠️+160.000.00000.000.00
ESP320⚠️+200.000.00000.000.00
Click to expand the detailed deltas report [usage change in BYTES]
TargetESP32S3ESP32S2ESP32
ExampleFLASHRAMFLASHRAMFLASHRAM
libraries/ESP32/examples/Camera/CameraWebServer------
ESP32/examples/Camera/CameraWebServer (2)⚠️+200⚠️+160⚠️+200
ESP32/examples/Camera/CameraWebServer (3)⚠️+32⚠️+16----

me-no-dev
me-no-dev reviewed Jun 16, 2025
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libraries/ESP32/examples/Camera/CameraWebServer/app_httpd.cpp Outdated
#define CONFIG_LED_MAX_INTENSITY 255

int led_pin = 22; // Store the actual LED pin used
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22 is invalid GPIO on some chips. Code should be reworked so that CONFIG_LED_ILLUMINATOR_ENABLED and LED_LEDC_GPIO are defined in the camera board config and not just be enabled by default

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Thanks for review, I'm working on a version that use #if defined(LED_GPIO_NUM) to check if LED is available.
I'll test on real hardware this weekend and upload the new fix.

@HighDopingHighDoping requested a review from me-no-dev June 21, 2025 01:56
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@P-R-O-C-H-Y P-R-O-C-H-Y P-R-O-C-H-Y approved these changes

@lucasssvaz lucasssvaz Awaiting requested review from lucasssvaz

@me-no-dev me-no-dev Awaiting requested review from me-no-dev

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