Rebase onto v0.15.3

[SteveEisner]

This brings the repo up to date with the latest version of WLED

Summary by CodeRabbit

• New Features

  • Added Tubes usermod with customizable LED patterns, effects, and beat-synchronized animations
  • Implemented ESPNOW mesh networking for synchronized multi-device control
  • Added power-save toggle via button control

• Hardware Support

  • Added configurations for multiple ESP32 variant devices (QuinLED DigUNO, S3-Matrix, C3-Athom, Gledopto)
  • Introduced Tubes-specific build variants with audio-reactive support

• Improvements

  • Expanded palette system with additional gradient options
  • Enhanced firmware update tooling with automated OTA capabilities
  • Updated documentation with Tubes feature overview

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Introduces a comprehensive Tubes LED controller system to WLED, including a new usermod with beat-synchronized patterns, effects, and particle rendering; adds ESPNOW mesh networking support; updates button handling with power-save modes; expands PlatformIO build configurations; and refreshes palette definitions.

Changes

Cohort / File(s)	Summary
Build Configuration & Packaging .gitignore, platformio.ini, platformio_override.ini, platformio_tubes.ini	Added new PlatformIO environments for esp32 variants (QuinLED DigUNO, Dig2Go, S3-Matrix, C3-Athom, Gledopto) with tube-specific pin configurations, FFT library dependencies, and environmental overrides for build flags and defaults.
Tubes Usermod Core System usermods/Tubes/Tubes.h, usermods/Tubes/controller.h, usermods/Tubes/master.h, usermods/Tubes/node.h	New comprehensive usermod implementing pattern controller with WLED integration, BPM/beat synchronization, palette/pattern/effect management, button handling, master/follower mesh behavior, and UI overlay rendering with complex state machine and command routing.
Beat & Synchronization usermods/Tubes/beats.h, usermods/Tubes/global_state.h, usermods/Tubes/timer.h	Added beat controller with BPM/tempo management, beat-frame accumulation, and global timing/state structures; lightweight timer utility for scheduling patterns and effects with millisecond/microsecond precision.
Visual Effects & Rendering usermods/Tubes/pattern.h, usermods/Tubes/effects.h, usermods/Tubes/particle.h, usermods/Tubes/virtual_strip.h	New effect system with 24 pre-configured LED patterns, particle-based animations with physics, virtual strip abstraction supporting fade transitions and beat-synchronized color selection via palettes and hue modes.
Audio & Sound usermods/Tubes/sound.h, usermods/Tubes/debug.h	Added audio-reactive overlay management integrating with USERMOD_AUDIOREACTIVE; debugging controller for periodic status dumps and beat-frame visualization overlays.
Networking & Communication wled00/espnow_broadcast.h, wled00/espnow_broadcast.cpp, usermods/Tubes/bluetooth.h	Comprehensive ESPNOW mesh broadcast implementation with message queuing, callback registration, receive filtering, and BLE mesh integration for node synchronization and remote state updates.
Deployment & Configuration usermods/Tubes/firmware.sh, usermods/Tubes/firmware_test.sh, usermods/Tubes/update_server.py, usermods/Tubes/default_config.json	Added OTA firmware update automation (Bash scripts with SFTP/HTTP), Python HTTP server with encoding support, and comprehensive JSON device configuration template for hardware/network/LED settings.
Core WLED Updates wled00/button.cpp, wled00/wled.cpp, wled00/usermods_list.cpp, wled00/const.h	Integrated Tubes usermod registration, added ESPNOW broadcast initialization and loop integration, introduced new long-press power-save button behavior (1000ms) with usermod hooks, adjusted factory-reset timing (30s), incremented gradient palette count and usermod ID constant.
Color & Palette Management wled00/FX_fcn.cpp, wled00/palettes.h, usermods/Tubes/options.h	Replaced all gradient palette declarations with macro-based DEFINE_PALETTE syntax; updated palette registry and count (116 total); added strongly-typed enums for control modes (SyncMode, Duration, Energy, PenMode, EffectMode, BeatPulse) and ControlParameters/EffectParameters structures.
Documentation & Configuration readme.md	Substantially rewrote README to introduce WLED-Tubes as portable coordinated LED sticks with ESP32-based tempo synchronization, daisy-chaining via mesh/relays, overlay architecture with multi-layer effects, and expanded credits/feature list with branch-specific documentation.
Audio Integration usermods/audioreactive/audio_reactive.h, usermods/Tubes/util.h	Minor fix to FFT peak detection API call (pointer passing); added utility functions for 16-to-8-bit scaling, array size macro, and free heap memory reporting.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~75 minutes

Possibly related PRs

• Fix for cfg exceeding LED limit #4939 — Directly extends ESPNOW broadcast integration (espnow_broadcast.h/cpp) and mesh state management used throughout Tubes usermod networking layer.
• Bugfix for brightness factor upon save: fixes #4824 #4827 — Modifies wled00/button.cpp with related button handling patterns; this PR adds new power-save and long-press hooks that interact with the same button state machine.
• "unrestricted" number of custom palettes #4932 — Updates palette management constants and declarations in palettes.h and const.h alongside similar gradient palette registry changes in this PR.

Suggested reviewers

• willmmiles
• softhack007
• netmindz

✨ Finishing Touches

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• Post copyable unit tests in a comment

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[SteveEisner]

This was intended for my own branch - closing