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hpwit/I2SClocklessLedDriver — monthly activity digest

What landed on hpwit/I2SClocklessLedDriver's main branch, month by month. External-context reference — a factual log of a friend repo's activity, not projectMM's own history or roadmap. Newest month on top. The reusable prompt that generates these lives in README.md.

The library: Yves Bazin's (hpwit) clockless-LED driver that clocks WS2812-class strips out over the ESP32's I2S/LCD peripheral with DMA — the parallel-output technique projectMM's LED-driver analysis studies. Summarised via the GitHub commits API (all commits on main), filtering out merge commits, lint/format churn, and 🐰-review fixups. No versioned release is cut from main in this window (latest tag is 1.4), so months are kept whole.

Authorship note. Most of the activity in this window is projectMM's own — ewowi authored ~53 of the in-window commits, with the rest from the maintainer (Yves Bazin / hpwit) and a couple of others. The IDF 5.5 / arduino-less ESP-IDF / RGBCCT / >65K-LED work below is largely projectMM upstreaming its driver needs into hpwit's library, then tracking the result here.

June 2026

No user-facing activity: no commits merged to main (latest activity is April 6, 2026) and no notable issues.

Auditability: commits on main author-dated 2026-06-01..2026-06-30 = 0 (0 merged); issues created/closed/updated in June 2026 = 0. No versioned release published in June (latest tag 1.4, 2026-04-06).

April 2026

~17 commits on main, 2026-04-01 … 2026-04-30.

  • Arduino-less ESP-IDF support hardening: ML/ESP-IDF compile fixes, esp_rom_delay_us, #ifndef HARDWARESPRITES guard.
  • Moved gNbDmaBuffer / gNumStrips into the driver class (less global state); CI + documentation set up; integer types tightened to uintx_t.

March 2026

~9 commits on main, 2026-03-01 … 2026-03-31.

  • RGBCCT support added; an ESP-IDF CMakeLists.txt + small-modifications pass for arduino-less ESP-IDF builds.
  • Memory-management improvements; setGamma arguments switched to RGB order; semaphore-wait logging tuned.

January 2026

~4 commits on main, 2026-01-01 … 2026-01-31.

  • >65K-LED support — total_leds widened to 32 bits; added extractWhiteFromRGB.
  • ESP32-D0: removed ESP_INTR_FLAG_IRAM from esp_intr_alloc; deleteDriver checks on the DMA tampon buffers.

December 2025

~6 commits on main, 2025-12-01 … 2025-12-31.

  • White channel at a configurable offset (not fixed at index 3); driver->p_w bugfix.

November 2025

~2 commits on main, 2025-11-01 … 2025-11-30.

  • ESP32-S3 I2S init timing tweak (div_num/a/b), small stop-delay; reverted an SK6812 clock-speed adjustment.

October 2025

~19 commits on main, 2025-10-01 … 2025-10-31.

New

  • IDF 5.5 support — version checks, dynamic DMA-buffer allocation (PSRAM-preferred), NUM_STRIPS as a global, IRAM_ATTR removed from forwards to compile warning-free.
  • updateDriver / deleteDriver gained length/size and per-strip offset parameters; initled with custom colour arrangement; isVirtualDriver flag; setDelay().
  • Split a Driver.cpp out of the header; added clang-format and removed the COLOR_ORDER_ compiler directives.

Fixed

  • _gammab-to-RGBW bugfix; pins array made uint8_t for compatibility with other libraries.