# CF632BLE: a local client from scale-protocol research

> Reimplements the CF632BLE scale’s BLE protocol and body-composition calculations from research on the vendor’s Unique Health Android app. A static Web Bluetooth client receives measurements, manages device profiles and keeps its history in browser storage.

- Type: Case study
- Targets: App · Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-10-17
- Added to the catalog: 2026-10-17
- Original resource: <https://github.com/guyru/cf632ble>
- Primary source: <https://github.com/guyru/cf632ble/blob/c029ef5cfefbd323ffe2a194a75db5cc47aa6d5c/README.md>
- Catalog page: <https://awesomerea.org/resources/cf632ble-case/>
- Record JSON: <https://awesomerea.org/resources/cf632ble-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/cf632ble-case/index.md)

## Requirements & limits

- **Prerequisites:** Requires the CF632BLE hardware and a Chromium browser supporting Web Bluetooth in a secure context. Firefox and Safari/iOS cannot connect to the scale through this app.
- **Prerequisites:** The SvelteKit/Vite application builds with npm and a static adapter. Its documented measurement path has no application server or vendor backend dependency.
- **Scope:** Single-user browser storage is localStorage. The Device tab can explicitly write device profiles and settings; local history and scale memory are different stores.
- **License:** The reviewed README and package manifest give no project license, and no root LICENSE file was present at the pinned commit.
- **Testing evidence:** Device compatibility and formula accuracy are project claims.

## Primary sources

1. <https://github.com/guyru/cf632ble/blob/c029ef5cfefbd323ffe2a194a75db5cc47aa6d5c/README.md>
2. <https://github.com/guyru/cf632ble/blob/c029ef5cfefbd323ffe2a194a75db5cc47aa6d5c/package.json>

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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.