# Axial: mapping and controlling the DJI RS 4 Mini over Bluetooth

> Axial documents and implements Bluetooth control of the DJI RS 4 Mini gimbal. Its Mac GimbalProfiler observes messages and tests commands, while an iPhone app uses a model-specific .axial profile and shared DUML framing to send controls and decode signals.

- 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/sky43535/axial>
- Primary source: <https://github.com/sky43535/axial/blob/4db3bd7d06a8a5b83b728692c2122b0555ad07a3/README.md>
- Catalog page: <https://awesomerea.org/resources/axial-dji-rs4-mini-case/>
- Record JSON: <https://awesomerea.org/resources/axial-dji-rs4-mini-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/axial-dji-rs4-mini-case/index.md)

## Requirements & limits

- **Prerequisites:** A DJI RS 4 Mini is the documented working gimbal; other models require mapping and a profile.
- **Prerequisites:** The iPhone app needs macOS with Xcode, iOS 17 or later, and developer signing; the Mac profiler needs macOS 14 or later.
- **Limits:** Only DJI DUML framing is implemented.
- **License:** CC BY-NC-SA 4.0 license.

## Primary sources

1. <https://github.com/sky43535/axial/blob/4db3bd7d06a8a5b83b728692c2122b0555ad07a3/README.md>
2. <https://github.com/sky43535/axial/blob/4db3bd7d06a8a5b83b728692c2122b0555ad07a3/docs/ARCHITECTURE.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.