> ## Documentation Index
> Fetch the complete documentation index at: https://docs.efference.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Recommended Specifications

> Compatible host devices and requirements for wired and wireless operation

Select a Linux host and connection appropriate to the intended workflow.

## Wired operation

In a wired configuration, the M1 connects directly to a host over USB. The
USB link powers the M1 and carries both control commands and live sensor data.

| Component             | Requirement                                                                     |
| --------------------- | ------------------------------------------------------------------------------- |
| Perception device     | Efference M1                                                                    |
| Host operating system | Ubuntu 22.04 or 24.04 recommended; other apt-based Linux distributions may work |
| Host architecture     | x86\_64 or arm64                                                                |
| Connection            | USB-C data cable connected to a USB 3.x host port                               |
| Host software         | Efference C++ SDK and USB udev rule                                             |

The Efference SDK supports Linux hosts, including NVIDIA Jetson. Windows and
macOS are not supported. Use a SuperSpeed data cable and a direct USB port
when possible.

### Recommended Linux host

* A modern 4-core or better processor
* 8 GB RAM or more
* At least 10 GB of free storage, with more space for MCAP recordings
* A USB 3.x port
* Ubuntu 22.04 or 24.04

The build requires C++17, CMake 3.16 or newer, `pkg-config`, and `libusb-1.0`.
The installation script adds the optional dependencies for video decoding,
Bluetooth LE (BLE), and the viewer.

## Wireless operation

Wireless operation separates the control and data connections:

| Interface          | Compatible devices                         | Purpose                                                         |
| ------------------ | ------------------------------------------ | --------------------------------------------------------------- |
| Bluetooth LE (BLE) | Linux host or compatible mobile controller | Device control, configuration, health, and recording management |
| WiFi/UDP           | Linux host running the SDK                 | Live video and IMU reception                                    |
| WiFi/HTTPS         | Network or cloud endpoint                  | Recording uploads and firmware downloads                        |

Bluetooth LE does not carry live video or IMU data. For a live wireless
stream, the M1 pushes data over WiFi/UDP to a Linux host specified by its
reachable IP address.

| Component            | Requirement                                                             |
| -------------------- | ----------------------------------------------------------------------- |
| Perception device    | Efference M1 with a suitable power source                               |
| Control device       | Bluetooth LE-capable Linux host or compatible mobile hardware           |
| Live-stream receiver | Linux x86\_64 or arm64 host running the Efference SDK                   |
| Network              | M1 and receiving host on the same reachable WiFi network                |
| WiFi security        | WPA2-PSK or WPA3-SAE (Personal). Enterprise 802.1X/EAP is not supported |
| Recommended WiFi     | Reliable 5 GHz connection for live streaming                            |

Device-local recording, health checks, configuration, and recording downloads
can use the BLE control link without a live data stream.

<Note>
  Compute, network, and storage needs depend on capture settings, recording
  duration, and host workloads.
</Note>

## Choose an installation path

<CardGroup cols={3}>
  <Card title="Working with Linux" icon="linux" href="/get-started/installation">
    Build the SDK and tools on an x86\_64 Ubuntu or Debian host.
  </Card>

  <Card title="Working with Jetson" icon="microchip" href="/get-started/install-jetson">
    Build on an NVIDIA Jetson running JetPack.
  </Card>

  <Card title="Working with Wireless" icon="wifi" href="/get-started/quickstart-wireless">
    Use Bluetooth LE for control and WiFi/UDP for live data.
  </Card>
</CardGroup>