wifi-densepose/python

wifi-densepose

Detect human presence, count people, read breathing and heart rate, and estimate skeletal pose — using only the WiFi signal already in your home.

No cameras. No wearables. Works through walls and in the dark.

wifi-densepose is the Python binding for the RuView sensing stack: a Rust core that turns the Channel State Information (CSI) emitted by ordinary WiFi chips into ambient-intelligence signals. The wheel ships compiled DSP for fast offline analysis, plus an opt-in Python client for talking to a live RuView sensing-server over WebSocket or MQTT.

Features

• 17-keypoint pose — full-body skeletal estimate from WiFi CSI, no camera
• Vital signs — respiratory rate (6–30 BPM) and heart rate (40–120 BPM) with a confidence score and clinical-grade / degraded / unreliable status
• Presence, person count, fall detection, motion — fused outputs from the same CSI stream
• 10 semantic primitives (HA-MIND) — someone-sleeping, possible-distress, room-active, bathroom-occupied, fall-risk-elevated, bed-exit, … — ready to wire into Home Assistant or Apple Home automations
• Beamforming Feedback (BFLD) support — 802.11ac/ax/be compressed feedback matrices on top of the receiver-side CSI path
• GIL-releasing DSP — extract loops run with the GIL released, so a tokio-backed web server can call into the pipeline without stalling its event loop
• Tiny wheel — ~240 KB compiled (one binary per OS/arch covers Python 3.10+ via the stable ABI)

Install

pip install wifi-densepose                 # core DSP only
pip install "wifi-densepose[client]"       # + WebSocket/MQTT clients

Wheels are published for Linux (x86_64, aarch64), macOS (x86_64, arm64), and Windows (amd64).

Usage

Extract breathing rate from a CSI stream

from wifi_densepose import BreathingExtractor

br = BreathingExtractor.esp32_default()     # 56 subcarriers @ 100 Hz, 30s window

for residuals, weights in your_csi_source:  # one frame at a time
    est = br.extract(residuals=residuals, weights=weights)
    if est is not None:
        print(f"{est.value_bpm:.1f} BPM  (confidence={est.confidence:.2f})")

Heart rate is the same shape — HeartRateExtractor.esp32_default() with a 0.8–2.0 Hz band-pass and a 15-second window.

Subscribe to a live sensing-server

import asyncio
from wifi_densepose.client import SensingClient, EdgeVitalsMessage

async def main():
    async with SensingClient("ws://your-ruview-node:8765/ws/sensing") as c:
        async for msg in c.stream():
            if isinstance(msg, EdgeVitalsMessage):
                print(msg.presence, msg.breathing_rate_bpm, msg.heartrate_bpm)

asyncio.run(main())

React to Home Assistant semantic primitives

from wifi_densepose.client import (
    RuViewMqttClient, SemanticPrimitive, SemanticPrimitiveListener,
)

listener = SemanticPrimitiveListener()
listener.on(SemanticPrimitive.BedExit, lambda e: print("bed exit:", e.node_id))
listener.on(SemanticPrimitive.PossibleDistress, lambda e: alert(e))

client = RuViewMqttClient(broker_host="homeassistant.local")
client.on_message(
    "homeassistant/+/wifi_densepose_+/+/state",
    listener.handle_mqtt_message,
)
client.start()
client.wait_connected()

Decode 802.11ax beamforming feedback

import numpy as np
from wifi_densepose import BfldFrame, BfldKind

# Parse compressed BFR from a Wireshark capture into a Complex64 ndarray ...
fb = np.zeros((2, 1, 996), dtype=np.complex64)  # Nr=2 Nc=1 Nsc=996 for HE80

frame = BfldFrame.from_compressed_feedback(
    timestamp_ms=ts,
    sounding_index=seq,
    sta_mac="aa:bb:cc:dd:ee:ff",
    kind=BfldKind.CompressedHE80,
    feedback_matrix=fb,
)
print(frame.n_subcarriers, frame.mean_amplitude)

Hardware

Works with any WiFi chip that exposes CSI. Reference setups (ESP-IDF firmware, build scripts, witness-verified test bundles) are in the RuView repo:

Device	Cost	Role
ESP32-S3 (8MB flash)	~$9	WiFi CSI sensing node
ESP32-S3 SuperMini (4MB)	~$6	WiFi CSI (compact)
ESP32-C6 + Seeed MR60BHA2	~$15	mmWave HR/BR/presence add-on

The legacy v1 line (Wi-Pose-style FastAPI server) is end-of-life; wifi-densepose==1.99.0 is a tombstone that raises ImportError pointing to v2 with a migration URL.

Links

• Repository — https://github.com/ruvnet/RuView
• Modernization plan — ADR-117
• Home Assistant integration — ADR-115
• Issues — https://github.com/ruvnet/RuView/issues

License

MIT.