# OBSBOT Tiny 3: USB control protocol investigation

> obsbot-tiny3-protocol investigates direct USB control of the OBSBOT Tiny 3 camera. It documents UVC extension-unit addressing, V3 frame fields and CRC, Tiny 3 AI mode values, and command behavior checked against camera-reported state; Python probes inspect UVC properties and test vendor opcodes.

- 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/brendanwelsh/obsbot-tiny3-protocol>
- Primary source: <https://github.com/brendanwelsh/obsbot-tiny3-protocol/blob/50076d3a6933b8ffd12d6971ebf5ed5e0fd39697/README.md>
- Catalog page: <https://awesomerea.org/resources/obsbot-tiny3-protocol-case/>
- Record JSON: <https://awesomerea.org/resources/obsbot-tiny3-protocol-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/obsbot-tiny3-protocol-case/index.md)

## Requirements & limits

- **Scope:** The observations concern an OBSBOT Tiny 3 tested on Windows 11.
- **Limits:** Auto Zoom framing control is reported unavailable through the examined USB and OSC paths.
- **License:** MIT License.

## Primary sources

1. <https://github.com/brendanwelsh/obsbot-tiny3-protocol/blob/50076d3a6933b8ffd12d6971ebf5ed5e0fd39697/README.md>
2. <https://github.com/brendanwelsh/obsbot-tiny3-protocol/blob/50076d3a6933b8ffd12d6971ebf5ed5e0fd39697/docs/protocol.md>
3. <https://github.com/brendanwelsh/obsbot-tiny3-protocol/blob/50076d3a6933b8ffd12d6971ebf5ed5e0fd39697/docs/ai-modes.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.