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{"intelligence":7,"timestamp":1774922079152}

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@ -5,65 +5,6 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [v0.5.3-esp32] — 2026-03-30
### Added
- **Cross-node RSSI-weighted feature fusion** — Multiple ESP32 nodes fuse CSI features using RSSI-based weighting. Closer node gets higher weight. Reduces variance noise by 29%, keypoint jitter by 72%.
- **DynamicMinCut person separation** — Uses `ruvector_mincut::DynamicMinCut` on the subcarrier temporal correlation graph to detect independent motion clusters. Replaces variance-based heuristic for multi-person counting.
- **RSSI-based position tracking** — Skeleton position driven by RSSI differential between nodes. Walk between ESP32s and the skeleton follows you.
- **Per-node state pipeline (ADR-068)** — Each ESP32 node gets independent `HashMap<u8, NodeState>` with frame history, classification, vitals, and person count. Fixes #249 (the #1 user-reported issue).
- **RuVector Phase 1-3 integration** — Subcarrier importance weighting, temporal keypoint smoothing (EMA), coherence gating, skeleton kinematic constraints (Jakobsen relaxation), compressed pose history.
- **Client-side lerp smoothing** — UI keypoints interpolate between frames (alpha=0.15) for fluid skeleton movement.
- **Multi-node mesh tests** — 8 integration tests covering 1-255 node configurations.
- **`wifi_densepose` Python package** — `from wifi_densepose import WiFiDensePose` now works (#314).
### Fixed
- **Watchdog crash on busy LANs (#321)** — Batch-limited edge_dsp to 4 frames before 20ms yield. Fixed idle-path busy-spin (`pdMS_TO_TICKS(5)==0`).
- **No detection from edge vitals (#323)** — Server now generates `sensing_update` from Tier 2+ vitals packets.
- **RSSI byte offset mismatch (#332)** — Server parsed RSSI from wrong byte (was reading sequence counter).
- **Stack overflow risk** — Moved 4KB of BPM scratch buffers from stack to static storage.
- **Stale node memory leak**`node_states` HashMap evicts nodes inactive >60s.
- **Unsafe raw pointer removed** — Replaced with safe `.clone()` for adaptive model borrow.
- **Firmware CI** — Upgraded to IDF v5.4, replaced `xxd` with `od` (#327).
- **Person count double-counting** — Multi-node aggregation changed from `sum` to `max`.
- **Skeleton jitter** — Removed tick-based noise, dampened procedural animation, recalibrated feature scaling for real ESP32 data.
### Changed
- Motion-responsive skeleton: arm swing (0-80px) driven by CSI variance, leg kick (0-50px) by motion_band_power, vertical bob when walking.
- Person count thresholds recalibrated for real ESP32 hardware (1→2 at 0.70, EMA alpha 0.04).
- Vital sign filtering: larger median window (31), faster EMA (0.05), looser HR jump filter (15 BPM).
- Vendored ruvector updated to v2.1.0-40 (316 commits ahead).
### Benchmarks (2-node mesh, COM6 + COM9, 30s)
| Metric | Baseline | v0.5.3 | Improvement |
|--------|----------|--------|-------------|
| Variance noise | 109.4 | 77.6 | **-29%** |
| Feature stability | std=154.1 | std=105.4 | **-32%** |
| Keypoint jitter | std=4.5px | std=1.3px | **-72%** |
| Confidence | 0.643 | 0.686 | **+7%** |
| Presence accuracy | 93.4% | 94.6% | **+1.3pp** |
### Verified
- Real hardware: COM6 (node 1) + COM9 (node 2) on ruv.net WiFi
- All 284 Rust tests pass, 352 signal crate tests pass
- Firmware builds clean at 843 KB
- QEMU CI: 11/11 jobs green
## [v0.5.2-esp32] — 2026-03-28
### Fixed
- RSSI byte offset in frame parser (#332)
- Per-node state pipeline for multi-node sensing (#249)
- Firmware CI upgraded to IDF v5.4 (#327)
## [v0.5.1-esp32] — 2026-03-27
### Fixed
- Watchdog crash on busy LANs (#321)
- No detection from edge vitals (#323)
- `wifi_densepose` Python package import (#314)
- Pre-compiled firmware binaries added to release
## [v0.5.0-esp32] — 2026-03-15
### Added

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# ESP32-S3 CSI Node — Default SDK Configuration
# This file is applied automatically by idf.py when no sdkconfig exists.
# Target: ESP32-S3
CONFIG_IDF_TARGET="esp32s3"
# Use custom partition table (8MB flash with OTA — ADR-045)
CONFIG_PARTITION_TABLE_CUSTOM=y
CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions_display.csv"
# Flash configuration: 8MB (Quad SPI)
CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y
CONFIG_ESPTOOLPY_FLASHSIZE="8MB"
# Compiler optimization: optimize for size to reduce binary
CONFIG_COMPILER_OPTIMIZATION_SIZE=y
# Enable CSI (Channel State Information) in WiFi driver
CONFIG_ESP_WIFI_CSI_ENABLED=y
# NVS encryption disabled by default (requires eFuse provisioning).
# Enable only after burning HMAC key to eFuse block.
# CONFIG_NVS_ENCRYPTION is not set
# Disable unused features to reduce binary size
CONFIG_BOOTLOADER_LOG_LEVEL_WARN=y
CONFIG_LOG_DEFAULT_LEVEL_INFO=y
# LWIP: enable extended socket options for UDP multicast
CONFIG_LWIP_SO_RCVBUF=y
# FreeRTOS: increase task stack for CSI processing
CONFIG_ESP_MAIN_TASK_STACK_SIZE=8192

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{"intelligence":35,"timestamp":1774903706609}

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@ -3584,9 +3584,12 @@ async fn udp_receiver_task(state: SharedState, udp_port: u16) {
let vitals = smooth_vitals_node(ns, &raw_vitals);
ns.latest_vitals = vitals.clone();
// DynamicMinCut person estimation from subcarrier correlation.
// Use correlation-based person estimation from frame history.
// This examines the temporal correlation structure of CSI
// subcarriers — correlated subcarriers belong to the same
// person, independent clusters indicate multiple people.
let corr_persons = estimate_persons_from_correlation(&ns.frame_history);
let raw_score = corr_persons as f64 / 3.0;
let raw_score = corr_persons as f64 / 3.0; // normalize to 0..1
ns.smoothed_person_score = ns.smoothed_person_score * 0.92 + raw_score * 0.08;
if classification.presence {
let count = score_to_person_count(ns.smoothed_person_score, ns.prev_person_count);

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{"intelligence":60,"timestamp":1774039923051}