DxO-One

KO | EN

gitlite — search

#javascript #python #llm #docker #nodejs #java #windows #cli #vue #pytorch #security #ios #mcp #openai

(★ 32)

Collected information about the (discontinued) DxO-One Camera. No warranties for anything.

DxO-One Latest Version Download

Download Latest Version (.zip)

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

# DxO-One Preservation Project
Unofficial, collected information about the (discontinued) DxO-One Camera, a tiny camera with a 1" Sony Sensor and f/1.8 lens.

## Early investigation shows potential for several changes/expansions, such as:
1. Support to connect iOS Variant to Android - DONE
2. Support to connect USB-C Variant to iPhone 15 or higher
3. Additional shot-modes (AE-bracketing, burst,...)
4. (Multi) camera control via Wi-Fi (Communication via JSON-RPC Protocol)
5. USB-networking Mode to control and charge camera (by initiating USB in the Linux stack)
6. Bluetooth Remote-Control integration (Hardware is there, only missing part seems to be the Linux integration)

More information is maintained in the [wiki](https://github.com/rickdeck/DxO-One/wiki).
Contribution is very welcome!

## Table of Contents
1. Software
   1. Ambarella RTOS
   2. Linux OS
   3. Firmware binary Analysis
2. Interesting things
   1. Connect DxO-One with Lightning Port to the Android App
   2. Fix DxO-One USB-C Device with outdated Firmware

More information is maintained in the [wiki](https://github.com/rickdeck/DxO-One/wiki).

## 1. Software

The device is using Ambarella RTOS as its main OS for controlling the camera hardware and OLED display, and a separate Linux OS to control Wi-Fi functions.
This is a quite popular chipset for (older) GoPro and other Action Camera clones as well as many Dashcams.

It seems that in case of the DxO-One, the Linux OS is mostly suspended and only woken up on-demand to connect to Wi-Fi. It might be interesting to achieve a shell to this OS, as it could allow adding wireless features (like FTP-transfer of images or 3rd party Wi-Fi control)

Ambarella OS has a own shell which can accept commands, but as the device is missing a UART-port I didn't find a way so far to connect to it (I suspect that it's possible to switch the USB-Port to UART, but I haven't found a method yet).

### 1.1 Ambarella RTOS
#### autoexec.ash:
On power-on (sliding the lens-cover open or connecting USB), the OS looks for the file `autoexec.ash` on the SD-Card and, if it exists, executes the shell-commands in it on the RTOS.
This allows to do a few interesting things, such as enabling logging, switching USB-Modes, executing commands, etc.

> [!IMPORTANT]
> 1. `autoexec.ash` needs to be stored at the root of the microSD-card (together with the DCIM-Folder)
> 2. Line-breaks need to be in Unix-format (LF, not CR LF)
> 3. Each command must be finished with a line-break, so the last line of the file should be empty.

To start investigating the Device, the first step is to re-route logging to a file stored on SD-card.

Download here: [Log-to-SD]( https://github.com/rickdeck/DxO-One/tree/main/Autoexec%20Scripts/Log-to-SD )
  ```
  t dxo console 8
  (empty)
  ```
  When this file is saved on the root of the SD-card, on next power-on of the camera it will log its operation to the file console_debug.txt in the root of the microSD

</details>

## 1.3 Firmware binary Analysis
The mobile App contains the firmware binary to update devices with older versions.

- **Latest version:** 3.2.0
- **Binary name:** DXOSYS_3.2.0.ecef5ef809.BIN
- **Path within iPhone app:** /DxO ONE.app/Firmware

Unpacking the binary with gopro-fw-tools ( https://github.com/evilwombat/gopro-fw-tools ) reveals 6 files:
- section_0 - Ambarella RTOS
- section_1 - DSP Microcode
- section_2 - Ambarella ROMFS
- section_3 - Linux kernel
- section_4 - Linux Root FS
- section_5 - Firmware-Update OS

# 2. Interesting things
There's a Smartphone App accompanying the Device for iOS, and an Android-App for the (later) USB-C version of the camera.

## 2.1 Connect DxO-One with Lightning Port to the Android App
There is a way to connect the Apple-variant of DxO-ONE to the Android App (assumed here that the Android device has a USB-C port, but it would also work with micro-USB).

Possibly, this could work with a lightning port to USB-C adapter (not tested, happy to hear if someone tried it), but there is a way to do this via the microUSB port on the back of the device.

See here: [Enable Lightning via microUSB]( https://github.com/rickdeck/DxO-One/blob/main/Autoexec%20Scripts/AndroidApp-Enable), [Disable Lightning via microUSB]( https://github.com/rickdeck/DxO-One/blob/main/Autoexec%20Scripts/AndroidApp-Disable )

**Limitations:**
1. Wi-Fi connection between Smartphone and DXO-ONE doesn't work (apparently some protocol-issue I didn't look into yet)
2. Not really convenient to use as viewfinder, but good to change settings on the camera (current app-setting is preserved by the camera and kept after disconnecting)

## 2.2 Fix DxO-One USB-C Device with outdated Firmware
If you purchased a DxO-One USB-C Variant online, you may have received a device with very outdated Firmware that cannot connect to the DxO-One Android App.
(You likely have only received the device without accessories or sales-box, which was probably a swap-unit which still had to be upgraded before shipping.)
These devices only have an initial firmware, where the camera itself is working, but the USB-C connection to the DxO-One Android-App doesn't work.

If you like to upgrade the device to a usable state, I have prepared a script and a set of files which allow you to upgrade the camera via SD-card.

See here: [Upgrade-USBC-Model]( https://github.com/rickdeck/DxO-One/tree/main/Autoexec%20Scripts/Upgrade-USBC-Model)

DxO-One

DxO-One Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

DxO-One

DxO-One Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

Download README