# wM-Bus Gateway

Read water, gas, heat, and electricity meters wirelessly and send data directly to Home Assistant—no cloud or extra devices needed.

- **Seller:** [IoTLabs](https://lectronz.com/stores/iotlabs), Warsaw, Poland
- **Price:** €44.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Home automation, ESP32, Home automation
- **Country of origin:** Poland
- **Product page:** https://lectronz.com/products/wm-bus-gateway

## Links

- [Documentation](https://iotlabs.pl/en/wm-bus-gateway)
- [Code](https://github.com/IoTLabs-pl/wM-Bus-Gateway/)

## Images

![wM-Bus Gateway](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjU3MTIsInB1ciI6ImJsb2JfaWQifX0=--3c362d147d51f6b1414e00a94a10f04c01259ece/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/P1010329.jpg)
![wM-Bus Gateway](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjU3MDgsInB1ciI6ImJsb2JfaWQifX0=--f07ac6ff70cafd6903b731d886114f1dd91af373/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/ad2small.jpg)
![wM-Bus Gateway](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjU3MTYsInB1ciI6ImJsb2JfaWQifX0=--15afd089675c7341393ee3c55da3d9aa3de2dc01/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/P1010326.jpg)
![wM-Bus Gateway](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjU3MjAsInB1ciI6ImJsb2JfaWQifX0=--325fd5e95c397a4a8c85d748b67d9043fb42731f/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/P1010327.jpg)
![wM-Bus Gateway](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjU3MjQsInB1ciI6ImJsb2JfaWQifX0=--f1f4ed7970f28482e68e2ccd2454418856ca23d4/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/4_total_energy2.jpg)
![wM-Bus Gateway](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjU3MjgsInB1ciI6ImJsb2JfaWQifX0=--27aa21c13e69c451b7043ad3eb86d79b91ca285f/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/1_default2.jpg)
![wM-Bus Gateway](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjU3MzIsInB1ciI6ImJsb2JfaWQifX0=--eaa6a4d11500a0bd33b98b9758a48516200f2315/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/P1010330.jpg)

## Description

**wM-Bus Gateway**


wM-Bus Gateway is a device for receiving data from meters and sensors communicating via the Wireless M-Bus (wM-Bus) standard. It integrates **wmbusmeters**, **ESPHome** and custom made code. The gateway operates in the 868 MHz band and is equipped with an external antenna on an SMA connector, as well as a built-in 2.4 GHz antenna for Wi-Fi and Bluetooth connectivity.

Built on the ESP32 platform, the gateway is designed for full integration with Home Assistant and can be quickly deployed as a home automation component, supporting local frame decoding, data presentation, and wireless communication.

It has built-in 1.3″ OLED display which provides access to key information. By default, it shows:

* Measurements received from meters (e.g., water, heat, electricity)
*  Current device status (Wi-Fi connection, signal strength, reception status)
*  Most recent activity and radio transmission parameters

The gateway can also function as a Bluetooth Proxy. By enabling the appropriate option in ESPHome, the device can forward data from BLE sensors to Home Assistant, operating in parallel with wM-Bus reception.

wM-Bus Gateway is designed for:

* Reading water, heat, gas, and electricity meters
* Integration with utility billing systems
* Collecting real-time data for automation and charts
* Local analysis of unusual consumption (e.g., leak detection)
* Extending BLE coverage for Bluetooth sensors throughout the home

The software is well-developed making device work out-of-box - it doesn’t require advanced knowledge from the user. It’s also open-source, which means anyone who needs to can modify it to suit their own needs, e.g. if you don't use Home Assistant, you can configure wM-Bus Gateway to publish data to MQTT, native API, REST endpoints or TCP/UDP sockets.

Simple integration workflow for Home Assistant can be found here: https://github.com/IoTLabs-pl/wM-Bus-Gateway/

Want to learn more about the wM-Bus Gateway and other devices from IoTLabs? Visit our website: https://iotlabs.pl/en/wm-bus-gateway