DSMR Smart Meter
dsmr
A sensor platform for Belgian, Dutch, Luxembourg and Swedish Smart Meters which comply to DSMR (Dutch Smart Meter Requirements), also known as 'Slimme meter' or 'P1 poort'. Swedish meters with a 'HAN port' are not supported by this integration.
In Apple Home through HomeKit Bridge
What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.
| Entity | Shows up as | Note |
|---|---|---|
sensor | Sensor (air quality) |
What people report
Supports Dutch DSMR plus Luxembourg, Swedish and now encrypted Luxembourg and Austrian meters; district heat meters were fixed in 2024; USB-RFXtrx P1 setups are troublesome.
- Works4
- Partly works1
| Device | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| District heat meters (M-Bus type 4) | Works | P1 readings from heat meters fixed in 2024.9Saved copyFix DSMR integration for Heat meters (`MBUS_DEVICE_TYPE: 4`). After #121929, the DSMR integration was no longer processing P1 readings from district heat meters. This PR fixes that by adding support for heat meters. Additionally, if an unsupported mbus device type is detected, this is now logged, making detecting similar issues in the future a bit easier. ## Breaking change <!-- If your PR contains a breaking change for existing users, it is important to tell them what breaks, how to make it work again and why we did this. This pi Excerpt saved from GitHub on 2026-10-23. | PR #125523 · 2024-09 | |
| Encrypted Luxembourg and Austria meters | Works | Encrypted DSMR support merged July 2026Saved copyBreaking change ## Proposed change <!-- Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request Excerpt saved from GitHub on 2026-10-23. | PR #176058 · 2026-07 | |
| Luxembourg Smarty meter | Works | Explicit support addedSaved copyBreaking change ## Proposed change <!-- Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves Excerpt saved from GitHub on 2026-10-23. | PR #43975 · 2020-12 | |
| Swedish smart electricity meters | Works | Subset of datapoints supportedSaved copyProposed change Add support for Swedish smart electricity meters to DSMR The Swedish smart meter standard is heavily influenced by the Dutch DSMR spec v5, and offers a subset of the datapoints included in the Luxembourg version. In addition, the Swedish smart meter standard includes Excerpt saved from GitHub on 2026-10-23. | PR #54630 · 2021-08 | |
| RFXtrx433 USB with P1 (Belgian 5B) | Partly works | Setup as 5B fails; 5S works; no data received on portSaved copyThanks for the update Maarten69. Another update from my side Tested on: - Home Assistant 2023.9.3 - Supervisor 2023.09.2 - Operating System 10.5 - RFXTRX433 with FW 2025 and connected to USB to Raspberry Pi 3 and via P1 interface to the meter When adding the DSMR with a 5B (since I'm in Belgium) and selecting device (/dev/ttyUSB0 - CP2102N USB to UART Bridge Controller - Silicon Labs) it throws an error after some time (30-60s) saying "Could not connect" (In NL "Kon niet verbinden"). I have been able to add it with config 5S, but in this case it doesn't receive any data. For info this is an … Excerpt saved from GitHub on 2026-10-23. | Issue #92950 · 2023-05 |
Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.
How it connects
Local push
Talks to the device on your network, and the device tells Home Assistant the moment something changes.
Details
| Installs (analytics) | 5,785 (0.82%) |
|---|---|
| Added in | Home Assistant 0.34 |
| Set up in the UI | Yes |
| Maintainers | @Robbie1221 |
In ReReHome
Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.
Bridges get their own settings page listing the accessories behind them.
