# DJI RC: reconstructing joystick values from DUML USB messages

> DJI RC Joystick Bridge reconstructs the stick-value exchange of a locked DJI RM-series controller over its DUML USB interface. The Python client polls command set 0x06, command 0xf5, decodes four little-endian axes from the payload and exposes them as a Linux uinput gamepad.

- 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/gregszero/dji-rc-joystick>
- Primary source: <https://github.com/gregszero/dji-rc-joystick/blob/fc0dbff0988bd8ae9386f13cecded9b7073ba1bd/README.md>
- Catalog page: <https://awesomerea.org/resources/dji-rc-joystick-case/>
- Record JSON: <https://awesomerea.org/resources/dji-rc-joystick-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/dji-rc-joystick-case/index.md)

## Requirements & limits

- **Prerequisites:** Linux, Python 3, libusb, uinput access and a powered DJI RM-series controller with USB ID 2ca3:1023 are required.
- **Attribution:** DUML framing and CRC routines are derived from dji-firmware-tools.
- **License:** GPL-3.0 license.

## Primary sources

1. <https://github.com/gregszero/dji-rc-joystick/blob/fc0dbff0988bd8ae9386f13cecded9b7073ba1bd/README.md>

## More in Protocols

- [Minisforum MS-A1: reconstructing embedded-controller sensor access](https://awesomerea.org/resources/ms-a1-ec-case/index.md) · Case study
- [NFC PM-Pro: reconstructing the FURUI reader's HID protocol](https://awesomerea.org/resources/nfc-pm-pro-case/index.md) · Case study
- [RF Power Meter V5 Companion: reconstructing the meter's serial protocol](https://awesomerea.org/resources/rf-power-meter-v5-companion-case/index.md) · Case study
- [miband-lit: reconstructing Mi Band 5 BLE heart-rate access](https://awesomerea.org/resources/miband-lit-case/index.md) · Case study
- [Zafro AC: replacing the I4season device cloud locally](https://awesomerea.org/resources/zafro-ha-local-case/index.md) · Case study
- [open-apt-flash: reconstructing the APT 860C UART flasher](https://awesomerea.org/resources/open-apt-flash-case/index.md) · Case study

## 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.