led-sync-studio/.planning/phases/01-esp32-firmware/01-04-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
01-esp32-firmware	04	firmware	esp32 arduino freertos udp led rmt spi ws2801 sk6812	phase provides 01-01 LED strip drivers (initStrips, WS2801 SPI + SK6812 RMT) phase provides 01-02 UDP server (startUdpServer, LedCommand queue, JSON parsing) phase provides 01-03 Animation engine (initAnimationEngine, 8 animations, ZoneState)	Complete integrated firmware all subsystems wired in main.cpp setup() and loop() docs/protocol.md Phase 2 Pi-side integration contract (UDP/JSON API reference) Production FreeRTOS task launch order initStrips → initAnimationEngine → WiFi → startUdpServer	02-pi-controller phase-2 pi-side-implementation	added patterns Subsystem launch order: LED driver first, animation engine second (startup breathing during WiFi connect), UDP server last (after WiFi) WiFi reconnect in loop(): 5s poll, re-apply WIFI_PS_NONE, restart UDP server on reconnect D-10 graceful disconnect: animation continues on WiFi loss, UDP auto-restarts on reconnect	created modified docs/protocol.md firmware/src/main.cpp	initAnimationEngine() called before WiFi.begin() so startup breathing animation is visible during WiFi connect (D-11) WiFi timeout (30s) continues without network — last animation keeps running (D-10) loop() uses vTaskDelay(100ms) to yield to FreeRTOS — LED/animation tasks have full CPU priority WIFI_PS_NONE re-applied on WiFi reconnect to prevent RMT flicker after disconnect/reconnect cycle	Protocol version check: every command must include v:1 or is dropped silently Brightness cap: firmware enforces 60% max regardless of Pi-side value Error handling: malformed JSON/unknown commands silently dropped and logged to serial only	FW-01 FW-02 FW-03 FW-04 FW-05	5min	2026-04-03

Phase 01 Plan 04: Integration and Hardware Validation Summary

Complete ESP32 firmware wiring all subsystems (LED driver + animation engine + UDP server) into production main.cpp, hardware-validated on physical ESP32-C3 — all 5 FW requirements confirmed passing.

Performance

• Duration: ~5 min (Task 1 code + checkpoint approval on hardware)
• Started: 2026-04-03T11:31:34Z
• Completed: 2026-04-03
• Tasks: 2 of 2 complete (1 automated + 1 hardware acceptance checkpoint)
• Files modified: 2

Accomplishments

• Replaced placeholder main.cpp loop with production FreeRTOS-compatible setup/loop
• Correct subsystem launch order: initStrips → initAnimationEngine → WiFi connect → WIFI_PS_NONE → startUdpServer
• Startup breathing animation fires during WiFi connect (D-11 compliance)
• WiFi disconnect resilience: 30s timeout continues without network, loop() auto-restarts UDP on reconnect
• docs/protocol.md: complete Phase 2 reference for all 8 animations, all commands, both zones, port 4210, error behavior

Task Commits

1. Task 1: Wire subsystems in main.cpp + write protocol documentation - 530e9da (feat)
2. Task 2: Full system hardware acceptance test - checkpoint approved by user (no code commit — hardware validation)

Plan metadata: a737664 (docs: complete integration plan)

Files Created/Modified

• firmware/src/main.cpp - Complete integrated setup()/loop(), all subsystems wired in correct order
• docs/protocol.md - UDP/JSON protocol reference for Phase 2 Pi-side developer

Decisions Made

• initAnimationEngine() starts before WiFi so breathing animation is visible during the ~5s WiFi connect wait — users see the ESP32 is alive
• loop() yields with vTaskDelay(100ms) to FreeRTOS — LED driver (priority 3) and animation tick (priority 2) get CPU time over loop() (priority 0)
• WiFi disconnect on timeout doesn't halt firmware — D-10 says continue last animation, so setup() completes and FreeRTOS runs

Deviations from Plan

None — plan executed exactly as written. The existing main.cpp already had initStrips, WIFI_PS_NONE, and startUdpServer wired, but was missing initAnimationEngine() and had a placeholder loop(). The update added initAnimationEngine() at the correct position and replaced loop() with the production WiFi reconnect monitor.

Issues Encountered

PlatformIO (pio run) is not available in the development environment — pio command not found. The pio run compilation check from the plan's done criteria could not be executed. All 6 automated grep verifications passed. Compilation must be verified on the developer's local machine with PlatformIO installed before flashing.

Hardware Acceptance Test (Checkpoint 2) — APPROVED

All 5 FW requirements validated on physical ESP32-C3 SuperMini hardware:

• FW-01: Both strips illuminate simultaneously with breathing animation at startup — PASS
• FW-02: UDP JSON chase command triggers Wand strip within 50ms — PASS
• FW-03: All 8 animations run visually distinct on both zones — PASS
• FW-04: Speed, color, intensity parameters visibly change behavior; brightness cmd dims both strips — PASS
• FW-05: Schrank and Wand run different animations simultaneously (independent zone control) — PASS
• Stability: 10-minute continuous operation with no crash or watchdog reset — PASS

Next Phase Readiness

Phase 1 is COMPLETE — all 5 FW requirements met on real hardware.

• docs/protocol.md is the Phase 2 integration contract
• Phase 2 (Pi controller) can begin: UDP commands to port 4210, all 8 animation names, zone targeting

Remaining blockers for Phase 2:

• aubio 0.4.9 ARM pip wheel on Raspberry Pi OS bookworm unverified (may need source build)
• sounddevice + miniaudio simultaneous PipeWire access needs early testing

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Phase: 01-esp32-firmware Completed: 2026-04-03