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MyHOME for Home Assistant

Welcome to the official documentation for the MyHOME Home Assistant integration.

This integration connects your BTicino / Legrand MyHOME SCS bus systems via OpenWebNet IP & Serial gateways (such as F454, MH200, MH200N, MH201, MH202, MyHomeServer1, F461, or Legrand 3578 USB) directly into Home Assistant.

🌟 Next-Gen Architecture: v2.0

The v2.0 architecture represents a complete modernization of the integration, featuring:

  • UI-First Configuration: Streamlined gateway setup, automatic on-wire bus discovery, and device management via Home Assistant's native Config Flow and Options Flow (with backward compatibility for existing myhome.yaml files and SCS groups).
  • Native Automation Device Triggers: Automate physical CEN (WHO = 15) and CEN+ (WHO = 25) scenario pushbuttons directly in Home Assistant's automation builder (Short press, Long press, Release, and Rotary Encoder dials).
  • In-Band Diagnostic Bus Monitor: Real-time Lovelace card (custom:myhome-bus-card) providing live OpenWebNet frame monitoring, filtering, bus sweeping, and 1-click trace export without consuming extra gateway sockets.
  • Diffusione Sonora Dynamic Proxy: Stream music from Music Assistant or Spotify into BTicino analog audio matrix amplifier zones (WHO = 16) with automatic power management and anti-hiss gain staging.
  • Decoupled OWNd 2.0 Engine: Clean protocol abstraction preventing drift, backed by 1,600+ regression tests with 100% code coverage.

  • Getting Started

    Step-by-step setup, adding your gateway via Config Flow, and initial bus scan.

  • Gateways & Connection

    F454, MyHomeServer1, MH200N, HMAC authentication, keep-alive, and worker tuning.

  • Lighting & Dimming

    SCS on/off relays, dimmers, DALI DT8 tunable white, and RGB colour modes.

  • Covers & Shutters

    Timed-cover positioning model, full-run calibration, and hardware status tracking.

  • Climate & Probes

    Thermoregulation zones, 4-pipe fan-coils, push-driven temperature probes (WHERE ≥ 100).

  • Sound System / Audio

    F441/F441M matrix routing, multiroom streaming proxy, and decoder pooling.

  • CEN & CEN+ Triggers

    Physical wall buttons, scenario triggers, and ready-to-use blueprints.

  • Bus Monitor & Tools

    Real-time Lovelace bus monitor card, trace capture, and bus sweep utility.

  • Repairs & Diagnostics

    Comprehensive resolution guide for Home Assistant Repairs and diagnostic telemetry.

  • Upgrade from v0.9.4

    Step-by-step roadmap to migrate from legacy v0.9.4 YAML plants to the v2 architecture.

📦 Compatibility Matrix

Hardware Gateway Protocol Transport Concurrent Sessions HMAC Authentication Recommended Worker Count
MyHomeServer1 TCP (20000) 4 Yes 2
F454 / F455 TCP (20000) 2–3 Optional 1
MH200N / MH201 / MH202 TCP (20000) 1 No 1
F452 / F452V / MHServer TCP (20000) 1 No 1
Legrand 3578 USB / RS232 Serial 1 N/A 1

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