Libre Glucose MQTT Bridge
A Home Assistant add-on that polls your LibreLink Up glucose readings and publishes them to MQTT with automatic sensor discovery — your Glucose sensor appears in Home Assistant within minutes of starting the add-on. Powered by gluco-hub-rs.
Quick start
- In Home Assistant, open Settings → Add-ons → Add-on Store.
- Click the ⋮ menu (top right) → Repositories.
- Add:
https://github.com/micschr0/ha-libre-glucose-mqtt - Refresh the store; Libre Glucose MQTT Bridge appears in a new section.
- Click it → Install. Enter your LibreLink Up email and password (and your region, if outside the
EUdefault), then Start.
Once running, the add-on creates a Glucose sensor under the Gluco Hub device (Settings → Devices & Services → MQTT). The state holds the current reading in mg/dL by default (mmol/L if you configure it); entity attributes carry the full payload — mg/dL, mmol/L, trend arrow, and timestamp.
For every option, the sensor attributes, and MQTT topics, see Configuration. For troubleshooting and architecture detail, see Troubleshooting.
Why use it?
Abbott's apps lock your glucose data inside LibreLink Up. This add-on turns that reading into a normal Home Assistant sensor — an entity you fully control:
- Automations & alerts — notify, flash a light, or sound an alarm on highs and lows, with your own thresholds and quiet hours.
- Dashboards & history — chart your glucose beside everything else in your home, with long-term history stored locally.
- Your data, your home — the reading stays on your own broker and HA instance. No cloud dashboard, no subscription, no third party.
- Build on it — as an MQTT entity, the reading drives Node-RED, scripts, voice assistants, and any other integration.
- Set-and-forget — auto-discovery creates the sensor, the add-on reconnects on its own, and missed readings queue, then flush when the connection returns.
The add-on is a thin, auditable wrapper around the open-source gluco-hub-rs: all polling and MQTT logic lives upstream in gluco-hub-rs.
Requirements
| Requirement | Notes |
|---|---|
| Home Assistant OS or Supervised | Supervisor required; Container installs cannot run add-ons. |
| Mosquitto broker add-on + MQTT integration | The add-on requires an MQTT service to start. |
| LibreLink Up account | At least one active connection (typically a family-share invitation from a Libre 2 or Libre 3 sensor wearer). |
| Architecture | amd64, aarch64 (RPi 3 in 64-bit works). 32-bit ARM (armv7, armhf) and i386 are not supported. |
Getting help
- Add-on-specific issues (install, configuration, run): ha-libre-glucose-mqtt issues
- Polling / MQTT / LibreLink Up logic: gluco-hub-rs issues
Next steps
- Configure units, regions, MQTT topics, and advanced options.
- Troubleshoot common problems and understand the add-on's architecture.
- Try the Clock View — a real-time full-screen display accessible from the HA sidebar.
Not affiliated with Abbott Laboratories. Unofficial research and self-hosting tool. Use may violate Abbott's LibreLink Up Terms of Service. No warranty. Not for medical decisions, therapy, dosing, or diagnosis.
LibreLink, LibreView, FreeStyle Libre, Libre 2, and Libre 3 are trademarks of Abbott.