---
gsd_state_version: 1.0
milestone: v1.0
milestone_name: milestone
status: verifying
stopped_at: Phase 1 complete — all 5 FW requirements approved on hardware
last_updated: "2026-04-03T11:36:20.546Z"
last_activity: 2026-04-03
progress:
  total_phases: 4
  completed_phases: 1
  total_plans: 4
  completed_plans: 4
  percent: 0
---

# Project State

## Project Reference

See: .planning/PROJECT.md (updated 2026-04-03)

**Core value:** Songs mit LED-Animationen choreografieren und abspielen — der Nutzer baut Timeline-basierte Lichtshows zu seiner Musik.
**Current focus:** Phase 01 — esp32-firmware

## Current Position

Phase: 01 (esp32-firmware) — EXECUTING
Plan: 4 of 4
Status: Phase complete — ready for verification
Last activity: 2026-04-03

Progress: [░░░░░░░░░░] 0%

## Performance Metrics

**Velocity:**

- Total plans completed: 0
- Average duration: -
- Total execution time: 0 hours

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
|-------|-------|-------|----------|
| - | - | - | - |

**Recent Trend:**

- Last 5 plans: -
- Trend: -

*Updated after each plan completion*
| Phase 01-esp32-firmware P01 | 3 | 3 tasks | 6 files |
| Phase 01-esp32-firmware P01 | 21min | 4 tasks | 7 files |
| Phase 01-esp32-firmware P02 | 3min | 2 tasks | 5 files |
| Phase 01-esp32-firmware P03 | 14 | 2 tasks | 11 files |
| Phase 01-esp32-firmware P04 | 5 | 1 tasks | 2 files |
| Phase 01-esp32-firmware P04 | 5 | 2 tasks | 2 files |

## Accumulated Context

### Decisions

Decisions are logged in PROJECT.md Key Decisions table.
Recent decisions affecting current work:

- [Roadmap]: Hardware-first build order — ESP32 is the validation target for all Pi-side work; developing against a mock risks protocol mismatches late.
- [Roadmap]: WiFi+RMT coexistence must be tested on day 1 of Phase 1 (documented FastLED #1657, February 2026 — actively problematic on single-core ESP32-C3).
- [Roadmap]: SK6812 is RGBW (4 bytes/LED) — configure explicitly before any animation code; retrofitting requires protocol version bump.
- [Phase 01-esp32-firmware]: GPIO3 for SK6812 RMT (safe on SuperMini); GPIO6/7 for WS2801 SPI with GPIO0/1 fallback noted for JTAG conflicts
- [Phase 01-esp32-firmware]: NeoWs2801Spi2MhzMethod for 5m cable signal integrity; NeoGrbwFeature for SK6812 RGBW 4-byte mode
- [Phase 01-esp32-firmware]: -DESP32_ARDUINO_NO_RGB_BUILTIN mandatory in platformio.ini to prevent RMT driver conflict with Arduino core 3.x
- [Phase 01-esp32-firmware]: Hardware coexistence validated: WIFI_PS_NONE eliminates RMT flicker on ESP32-C3, zero flicker confirmed during 30s UDP burst test
- [Phase 01-esp32-firmware]: GPIO3/6/7 pin assignments confirmed on physical hardware — no JTAG conflicts, fallback GPIO0/1 not needed
- [Phase 01-esp32-firmware]: Two-queue FreeRTOS pattern: xQueueSendFromISR in AsyncUDP callback, parseTask drains rawQueue and dispatches LedCommand to commandQueue — prevents watchdog resets from JSON heap alloc in callback
- [Phase 01-esp32-firmware]: STATUS cmd handled inline in parseTask (no animation engine route) — needs sender IP/port from raw packet context, responds via udp.writeTo()
- [Phase 01-esp32-firmware]: parseCommand() enforces brightness cap (max 60%) per D-09 — firmware-side safety cap regardless of Pi value
- [Phase 01-esp32-firmware]: vTaskDelayUntil for 50fps drift-free animation tick — never drifts by compute time unlike vTaskDelay
- [Phase 01-esp32-firmware]: autoWhite formula: min(r,g,b)/2 warm-white approximation — triggers only when W=0 on RGBW strips
- [Phase 01-esp32-firmware]: initAnimationEngine() called before WiFi.begin() so startup breathing animation is visible during WiFi connect (D-11)
- [Phase 01-esp32-firmware]: WIFI_PS_NONE re-applied on WiFi reconnect to prevent RMT flicker after disconnect/reconnect cycle
- [Phase 01-esp32-firmware]: Hardware acceptance test approved — all 5 FW requirements (FW-01 through FW-05) validated on physical ESP32-C3 SuperMini with both LED strips

### Pending Todos

None yet.

### Blockers/Concerns

- [Phase 1]: ESP32-C3 RMT+WiFi coexistence has conflicting documentation — test simultaneously on first flash.
- [Phase 1]: GPIO pin assignment for simultaneous RMT (SK6812) + SPI (WS2801) on SuperMini needs hardware validation.
- [Phase 2]: aubio 0.4.9 ARM pip wheel on Raspberry Pi OS bookworm unverified — may require source build.
- [Phase 2]: sounddevice + miniaudio simultaneous PipeWire access needs early testing.

## Session Continuity

Last session: 2026-04-03T11:36:15.907Z
Stopped at: Phase 1 complete — all 5 FW requirements approved on hardware
Resume file: None