Wmbusmeters (W-MBus to MQTT) for Home Assistant (app)

About

Wmbusmeters (W-MBus to MQTT) is an app that reads utility meter data over the wireless mbus protocol. It receives telegrams from meters that send C1, T1 or S1 telegrams, so no vendor bridge or gateway is needed. Readings are passed to an MQTT topic, and each meter is defined by a name, driver, id and decryption key where the meter uses one. With MQTT discovery turned on, the app creates Home Assistant entities itself, with unit, device class and state class taken from the meter driver. Status fields also get a problem sensor, a text sensor and flag sensors that are disabled by default. It runs on Home Assistant OS on aarch64 or amd64, uses a USB radio receiver, and has its own page in the sidebar.

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Supports

Opens in the sidebar Its own page opens inside Home Assistant.
Actively maintained Its author released or pushed a change in the last six months.

Setting it up

Add its app repository under Settings, Apps, then install and start it.

From the docs

This add-on allows you to acquire utility meter readings without the vendors bridge or gateway as long as they support C1, T1 or S1 telegrams using the wireless mbus protocol (WMBUS).

From the docs of wmbusmeters/wmbusmeters-ha-addon, GNU GPL v3.0. Shortened.