Presence Engine Architecture

Engine Architecture (Verified)

From presence-detection-engine/docs/ARCHITECTURE.md:

• On-device processing on ESP32 (no cloud dependency).
• Z-score normalization for still-energy readings.
• 4-state machine with debouncing to reduce false positives.
• Runtime tuning through Home Assistant entities.

Roadmap Phases (Verified)

docs/ARCHITECTURE.md and docs/presence-engine-spec.md describe:

• Phase 1: Z-score detection + hysteresis
• Phase 2: Debounced 4-state machine
• Phase 3: Automated calibration + change-reason telemetry

Sources

• presence-detection-engine/docs/ARCHITECTURE.md
• presence-detection-engine/docs/presence-engine-spec.md