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Hardware Compatibility Matrix

The MyHOME integration supports all official BTicino and Legrand OpenWebNet gateways communicating via TCP/IP sockets or USB/Serial interfaces.

Supported Gateways

Gateway Model Protocol Support Max Command Workers Inter-Frame Delay UPnP Discovery Notes
F454 OpenWebNet / HMAC 4 workers 50 ms ✅ Port 49153 Full high-speed multi-session support
F455 OpenWebNet / HMAC 4 workers 50 ms ✅ Port 49153 Basic gateway (single SCS bus)
F461 OpenWebNet / HMAC 4 workers 50 ms ❌ Manual Compact DIN Ethernet Web Server
MH202 OpenWebNet / HMAC 2 workers 100 ms ✅ Port 49153 Modern scenario programmer gateway
MH201 OpenWebNet 1 worker 100 ms ✅ Port 49153 Second-generation scenario programmer
MyHomeServer1 OpenWebNet / HMAC 4 workers 20 ms ✅ SSDP Cloud/local hybrid gateway
MH200N OpenWebNet 1 worker 150 ms ✅ SSDP Second-generation scenario programmer
MH200 (Legacy) OpenWebNet 1 worker 150 ms ✅ SSDP Strict single-session pacing; watchdog hardened
H4890 / AM4890 OpenWebNet 1 worker 50 ms ✅ SSDP 3.5" Touch screen display IP gateway (Axolute / Livinglight)
F452 / F453AV OpenWebNet 1 worker 150 ms ✅ Port 49153 Audio/video & web server gateway
H4684 / H/L4684 OpenWebNet 1 worker 50 ms ✅ SSDP Colour touch screen IP gateway (Axolute / LivingLight)
Legrand 3578 OpenWebNet (Serial) 1 worker 50 ms ❌ Manual (Serial) USB / Serial gateway & OpenZigBee interface

Note

Gateways with only 1 concurrent command session (such as the MH200N, MH200, or MH201) are automatically tuned with command pacing (100–150 ms) to avoid queue flooding. Modern multi-session gateways (F454, F455, MyHomeServer1) use 20–50 ms pacing with worker pools (up to 4 workers).

Supported Bus Subsystems (WHO)

Subsystem WHO Code Home Assistant Platform Typical Hardware Modules
Lighting 1 light, switch F411/1, F411/2, F411/4, F418 (dimmer), F429 (DALI), 3560, L4652
Automation / Covers 2 cover F401, F411, LN4672M2, 67557
Thermoregulation 4 climate, sensor 3550, 4695 (Central Units), 3455, L4691, L4577, F430/2, F430/4
Burglar Alarm 5 alarm_control_panel 3485, 3486 (Central Units), 3480
Door Entry 6 lock, event bus Entrance panel door locks (4000–4099) and indoor-unit releases — requires a gateway that routes WHO 6 and sees the door-entry riser (MH200, MH202, F453; unverified: F453AV, F452, F452V, H4684, H4890, MH201, MH200N); F454 / F459 route only WHO 8
Video Door Entry / Intercom 8 event bus 2-wire entrance panels (PE1–PE4) — requires a gateway that sees the door-entry riser (F454, F459; unverified: F453AV, F452, F452V; or MH200/MH200N/MH202 when the riser reaches their bus)
Gateway Diagnostics 13 diagnostics, repair Gateway internal RTC clock, firmware, uptime, device types
Scenario Control (CEN) 15 device_trigger, event 3477, L4651/2, L4652/2 (Short / Long press)
Sound System 16 media_player F441, F441M (Audio matrix), L4561N / L4561, L4560, 3482, 3495 (Audio source interfaces & isolator), H4562, L4562, F502, 3484, 3487 (Room amplifiers), F500, F500COAX (FM RDS Tuners)
Energy Management 18 sensor F520, F521, F522, F523, 3522
Scenario Control (CEN+) 25 device_trigger, event L4652/3, LN4652, H4652 (Rotary dials, pushbuttons)

Important

Door Entry & Intercom (WHO = 6 / 8) — MH vs AV Bus Separation: BTicino 2-wire door entry (AV SCS riser) and home automation (MH SCS bus) are physically separate buses unless bridged through an F422 SCS/SCS interface; an A/V gateway (F454, F459, F453AV) connects to the AV riser itself. Dual-bus indoor touchscreens such as HomeTouch 3488 have isolated MH SCS BUS and AV SCS BUS terminals (they do not bridge door-entry frames onto MH) and do not run a local OpenWebNet server on TCP port 20000. Gateways without the bt_vct door-entry translator (MyHomeServer1, F455, F461, F450, F460) NACK *6*10*<where>## with *#*0##, and so do F454 / F459, whose bt_vct handles WHO 8 only. On such plants, either drive gates/strikes via an MH-bus dry-contact relay (F411/2, F411/1N, or F411/4 with interposing relays; WHO = 1 impulse cover) or add a gateway that routes WHO 6 and sees the riser (MH200, MH202, F453) in Shared Bus → Secondary mode with WHO 6 (and WHO 8 for doorbells) delegated to it.

Note

Sound System (WHO = 16) Wiring: The 2-wire SCS bus carries both digital commands (power, volume, input routing via OpenWebNet WHO 16) and modulated stereo audio simultaneously over the same 2-wire bus. External audio streamers connect their stereo analog line-out to an audio source interface (e.g. Legrand / BTicino L4561N, L4560, or 3482), which modulates the audio onto the 2-wire SCS bus into the F441/F441M matrix inputs S1–S4. For full details and the official wiring schematic, see the Sound System / Media Player Guide.

Gateway Startup Discovery Capabilities

During startup initial discovery, status queries are gated by the gateway profile (the WHOs it advertises) and then by what the gateway firmware actually forwards: a general request the firmware drops before the bus (*#4*0##, *#16*0*5## on the models noted below) is left out even though the profile advertises its WHO, and the climate zones of the SCS-only models among them ask *#4*<WHERE>*0## themselves. The second column is the profile, the third what the sweep sends:

Gateway Model Profile Subsystems (advertised) Startup Sweep Requests (sent) Profile Support Notes
MH202 WHO 1, 2, 4, 5, 16, 18 WHO 1, 2, 5, 18 (firmware drops *#4*0##, *#16*0*5##) Burglar Alarm (*#5*0##) and Energy (*#18*51*...) queries. WHO 4 and WHO 16 are advertised, but the 010024 firmware drops *#4*0## and *#16*0*5## (own-firmware-oracle), so the sweep leaves both out and each climate zone asks *#4*<WHERE>*0## itself.
H4890 / AM4890 WHO 1, 2, 4, 5, 16, 18 WHO 1, 2, 4, 5, 16, 18 Supports Burglar Alarm, Sound (*#16*0*5##), and Energy meter 51 queries.
F454 WHO 1, 2, 4, 16, 18 WHO 1, 2, 16, 18 (firmware drops *#4*0##) Full lighting, cover, sound (bt_difson firmware-verified), and energy meter 51 queries. The 020051 firmware drops *#4*0## (own-firmware-oracle), so each climate zone asks *#4*<WHERE>*0## itself. Alarm query omitted.
F452 / F453 / F453AV WHO 1, 2, 4, 16, 18 WHO 1, 2, 4, 16, 18 Lighting, cover, climate, sound (bt_difson firmware-verified on F453/F453AV), and energy meter 51 queries. Alarm query omitted.
F461 WHO 1, 2, 4, 18 WHO 1, 2, 18 (firmware drops *#4*0##) Lighting, cover, and energy meter 51 queries. Sound is WHO 22 only (no bt_difson; every WHO 16 frame refused, own-firmware-oracle 020011, confirmed live on 2.0.11). The firmware also drops *#4*0##, so the sweep leaves it out; zones are polled with *#4*<WHERE>##. Alarm query omitted.
F455 WHO 1, 2, 4, 18 WHO 1, 2, 4, 18 Entry-level gateway: lighting, cover, climate, and energy meter 51 queries. Sound (WHO 16/22) and Alarm (WHO 5) omitted per installer manual.
MyHomeServer1 WHO 1, 2, 4, 18 WHO 1, 2, 18 (firmware drops *#4*0##) Lighting, cover, and energy meter 51 queries. Sound is WHO 22 only (no bt_difson; every WHO 16 frame refused, own-firmware-oracle 028206, confirmed live on 3.87.13). The firmware also drops *#4*0##, so the sweep leaves it out; zones are polled with *#4*<WHERE>##. Alarm query omitted.
MH201 WHO 1, 2, 4, 16, 18 WHO 1, 2, 16, 18 (firmware drops *#4*0##) Lighting, cover, climate, sound (unmeasured class default), and energy meter 51 queries. Not in own-firmware-oracle; a physical MH201 3.3.6 returned no zone frame to *#4*0## although its zones report (tests/fixtures/traces/issue_466), so the sweep leaves it out and each climate zone asks *#4*<WHERE>*0## itself. Alarm query omitted.
MH200 (Legacy) WHO 1, 2, 4, 16 WHO 1, 2, 16 (firmware drops *#4*0##) Lighting, cover, climate, and sound queries (bt_difson hardware and firmware-verified). The 020102 firmware drops *#4*0## (own-firmware-oracle), so its climate zones ask *#4*<WHERE>*0## themselves. Alarm and energy queries omitted.
MH200N WHO 1, 2, 4, 16 WHO 1, 2, 4, 16 Lighting, cover, climate, and sound queries (bt_difson hardware and firmware-verified). The 010108 firmware forwards *#4*0## (own-firmware-oracle), unlike the MH200. Alarm and energy queries omitted.
H4684 / H/L4684 WHO 1, 2, 4, 16, 18 WHO 1, 2, 16, 18 (firmware drops *#4*0##) Lighting, cover, climate, sound, and energy meter 51 queries (bt_multi WHO 22 also enabled on firmware >= 6.0.0). Both 020054 (own-firmware-oracle) and live 6.0.11 (tests/fixtures/traces/issue_466) drop *#4*0##, so each climate zone asks *#4*<WHERE>*0## itself; the SSDP spellings H/L4684 and HL4684 resolve to H4684Profile. Alarm query omitted.