# rtchair: local control of the Rotai RT7709S massage chair

> rtchair reconstructs local control of the Rotai RT7709S massage chair from its communication protocol. An OpenWrt router redirects the chair's MQTT connection to a local broker, while a CLI and Home Assistant integration expose controls and timed massage programs.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/pinlo7/rtchair>
- Primary source: <https://github.com/pinlo7/rtchair/blob/c95ea87b8802a264fada410f0ae4155c2f0871ec/README.md>
- Catalog page: <https://awesomerea.org/resources/rtchair-case/>
- Record JSON: <https://awesomerea.org/resources/rtchair-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rtchair-case/index.md)

## Requirements & limits

- **Prerequisites:** An RT7709S already configured through the official app, plus an OpenWrt or ImmortalWrt router with passwordless SSH, is required for offline mode.
- **Limits:** The local broker has no authentication and is intended for a trusted home network.
- **License:** MIT license.

## Primary sources

1. <https://github.com/pinlo7/rtchair/blob/c95ea87b8802a264fada410f0ae4155c2f0871ec/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.