# Melitta Barista & Nivona: reconstructing coffee-machine BLE control

> Melitta Barista & Nivona for Home Assistant implements Bluetooth LE control of supported coffee machines through their shared Eugster/Frismag protocol. Its reference maps GATT characteristics, the HU handshake, encrypted frames, and status and brew commands. The integration exposes machine state and settings; Melitta models also have recipe and maintenance controls. Nivona support is in alpha.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/dzerik/melitta-barista-ha>
- Primary source: <https://github.com/dzerik/melitta-barista-ha/blob/859fb90b894185baba1f07ec9c903525d8a375db/docs/PROTOCOL.md>
- Catalog page: <https://awesomerea.org/resources/melitta-barista-nivona-ha-case/>
- Record JSON: <https://awesomerea.org/resources/melitta-barista-nivona-ha-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/melitta-barista-nivona-ha-case/index.md)

## Requirements & limits

- **Prerequisites:** Home Assistant 2024.7 or newer, Bluetooth LE access and a supported Melitta or Nivona machine are required.
- **Scope:** Melitta Barista T/TS Smart is the established supported family; Nivona support is alpha across several model families.
- **Testing evidence:** Most Nivona families still need live hardware validation.
- **License:** MIT license.

## Primary sources

1. <https://github.com/dzerik/melitta-barista-ha/blob/859fb90b894185baba1f07ec9c903525d8a375db/docs/PROTOCOL.md>
2. <https://github.com/dzerik/melitta-barista-ha/blob/859fb90b894185baba1f07ec9c903525d8a375db/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.