# breezyd: reconstructing local control of Twinfresh Breezy ventilators

> breezyd implements local UDP/4000 control for Vents Twinfresh Breezy 160 and Elite 160 Pro ventilators. Its Go library, CLI and daemon read sensors and set operating modes, while retained Python probes and snapshot diffs document how vendor-app actions were mapped to device parameters.

- 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/hughobrien/breezyd>
- Primary source: <https://github.com/hughobrien/breezyd/blob/a87809d5ce6c201c1c8d2e21ee5fe720e474c4bc/tools/README.md>
- Catalog page: <https://awesomerea.org/resources/breezyd-twinfresh-protocol-case/>
- Record JSON: <https://awesomerea.org/resources/breezyd-twinfresh-protocol-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/breezyd-twinfresh-protocol-case/index.md)

## Requirements & limits

- **Prerequisites:** A supported Twinfresh Breezy 160 or Elite 160 Pro unit reachable over the local network, with its device ID and protocol password.
- **Prerequisites:** Go 1.26.2 is declared by the source module for building the Go code.
- **Testing evidence:** Other 200-series models share the described protocol but were not tested against hardware.
- **License:** GNU General Public License v3.0.

## Primary sources

1. <https://github.com/hughobrien/breezyd/blob/a87809d5ce6c201c1c8d2e21ee5fe720e474c4bc/tools/README.md>
2. <https://github.com/hughobrien/breezyd/blob/a87809d5ce6c201c1c8d2e21ee5fe720e474c4bc/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.