[Feature Request] Matter over Thread support for Aqara Light Switch H2 EU (WS-EUK01 / WS-EUK02)

[steuerlexi]

Hi team,

First of all, thank you for the incredible work you're doing on this project!

I would like to request support for the new Aqara Light Switch H2 EU (2-in-1 Neutral mode, 4 buttons / 2 channels). While Zigbee support is already available, this new hardware generation also natively supports Matter over Thread.

Here are the key details for this device:

Product Name: Aqara Light Switch H2 EU

Protocol Target: Matter over Thread

Could you please consider adding / expanding support for this specific model via Matter over Thread? Please let me know if you need any payload logs, device signatures, or testing assistance from my side—I’d be happy to help test any early builds!

Thanks in advance!

[macpit]

Thanks for the request! Good news: since v5.0.0 Switch Manager supports Matter remotes through their event.* entities (see the IKEA BILRESA blueprints), so the H2 EU over Thread only needs a matching blueprint – no code changes.

What the H2 EU exposes over Matter varies (directly paired via Thread vs. bridged through an Aqara hub), so I'd like to build it from your real data. Could you post:

1. Is it paired directly to HA's Matter server (Thread border router) or via an Aqara hub (M3 etc.) as bridge?
2. In Developer tools → States, filter on event. and the device name: every event.* entity of the switch with its attributes (especially event_types).
3. For each of the 4 buttons: press it once, double press, and hold – which entity changes and which event_type does it show? (Or subscribe to state_changed in Developer tools → Events and paste the output.)
4. Optional: the unique ids of those entities (Settings → Entities → entity → ⚙), and whether the top buttons still toggle the relay / also fire events.

With that I'll put together a Matter – Aqara H2 EU blueprint for you to test.