Retrieve & view data

EGO1 recordings are .mcap files stored on the MicroSD card. MCAP is an open, self-describing format, so you can open the recordings in any MCAP-compatible viewer — no command line required.

Offload your recordings

1. Power off the device and remove the MicroSD card.
2. Connect the card to your computer with a card reader.
3. Copy the .mcap files off the card to your computer (organize them into folders per session).

Use the SD card for recordings, Wi-Fi for live view

Get recorded files off the device via the MicroSD card. Wi-Fi (the Visio Companion app) is recommended for live preview, not for transferring recordings.

Free up the card

After you've copied the recordings and confirmed they're intact, delete the exported files from the MicroSD card to make room for the next session.

Open the recordings

Open a .mcap file in any MCAP viewer to see the stereo camera views and IMU data. A few options:

• Foxglove Studio — a free desktop app that opens .mcap directly; add image and plot panels for the stereo cameras and IMU.
• Any other MCAP-compatible tool, or the visio-schema Python package for scripting — see Engineering integration.

Make sure your viewer supports H.265

EGO1 video is H.265-encoded. Use a viewer that decodes H.265 (recent Foxglove Studio does, with no extra plugins).

Where do I see the live view?

You want…	Use…
Live preview while capturing	The Visio Companion app (see Visio Companion app).
To review an already-recorded file	Any MCAP viewer on your computer (this page).
A live stream on the computer	Engineering workflow — see visio-display CLI.