# Changelog

## 2026-10-17 — SoftSPI touch + LVGL inverse (fix mux)

- VSPI remux broke SD mount and froze touch at raw(0,4095).
- Touch back to SoftSPI on 25/32/39/33; SD keeps exclusive VSPI 18/19/23/5.
- Same temperature UI map, then invert LVGL ROTATION_270 for button hits.

## 2026-10-17 — Touch = temperature driver + LVGL inverse

- Attempted XPT2046 HW SPI + VSPI pin mux; superseded (broke SD/touch).

## 2026-10-17 — Touch calib from COM3 logs

- Logged live `Touch phys/logic` on COM3; inverted physical X so bottom matches UI.
- On-screen `Touch L:x,y` debug; larger 150×60 buttons.
- Verified Speaker ON/OFF via serial during capture.

## 2026-10-17 — Fix touch Y (buttons dead zone)

- Root cause: feeding already-landscape 320x240 points while LVGL also applies
  ROTATION_270 (double transform) → only upper ~1/3 hit-tested correctly.
- Fix: report physical 240x320 coords; let LVGL rotate (matches `lv_indev.c`).

## 2026-10-17 — Restore LVGL touch

- SoftSPI + LVGL `lv_indev` (with `lv_indev_set_display`).
- Larger clickable speaker/play buttons.

## 2026-10-17 — Fix touch offset

- SoftSPI touch now uses the same rotation=2 transform + map as `temperature`.
- (Pressure-only path was too strict; superseded by restore above.)

## 2026-10-17 — Prebuilt firmware folder

- Add `firmware/cyd/` with bin + `flash.ps1` / `flash.bat` (same pattern as temperature).
- Add `firmware/export_from_build.ps1` to refresh archived binaries after builds.
- Track `firmware/**/*.bin` in git; document flash-without-compile in README.

## 2026-10-17 — Touch speaker control + music

- SoftSPI XPT2046 touch (GPIO 32/39/25/33/36), coexists with SD.
- LVGL buttons: **Speaker ON/OFF**, **Play Music / Stop**.
- Non-blocking built-in melody (Twinkle Twinkle); no auto beeps.
- Docs updated.

## 2026-10-17 — Speaker audio test

- Add GPIO26 speaker path (onboard SC8002B amp / P4 connector).
- (Superseded by touch control above.)

## 2026-10-17 — Initial

- CYD TF/microSD mount (VSPI) + LVGL storage info UI.