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    SMHUB Nano Mg24 - Compact Linux Smart Hub with EFR32MG24

    SMHUB Nano MG24

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    Сompact Linux-based smart hub

    SMHUB Nano — Core Overview

    SMHUB Nano is a professional-grade control hub running a Linux-based system that can host apps locally — Zigbee2MQTT, MQTT broker, WireGuard, Tailscale, Matterbridge, and more. Despite working seamlessly with smart home systems like Home Assistant, OpenHAB, HomeSeer, or others, with Zigbee2MQTT and Matterbridge it can also expose Zigbee devices directly to Google Home or Apple Home without any additional hubs (Zigbee device → SMHUB → Google/Apple Home).

    The Story Behind SMHUB

    At SMLIGHT, we delivered multiple complete solutions for smart home networks - and the SLZB-06 series and SLZB-MR series of Zigbee+Thread+Wi-Fi+ Bluetooth coordinators became well known and beloved by thousands of customers. Many users told us they wanted to decouple Zigbee software like Zigbee2MQTT from their home servers for better stability. That insight led us to build a hub that can run the software itself: a fully fledged Linux system designed for reliability and simplicity.

    From adapters to a complete hub

    From Adapters to a Complete Hub

    Adapters solved connectivity. SLZB-06 and SLZB-MR series reliably connected devices to any smart home platform.
    SMHUB Nano. It runs Linux packages directly on the hub - Zigbee2MQTT, Matterbridge, Node-RED, WireGuard, Mosquitto MQTT - so you don’t have to juggle separate servers, bridges, and dongles.

    Technical Vision

    • Fully fledged Linux system: runs open-source apps locally for stability and control.
    • Multi-radio core: Zigbee, Thread, Wi-Fi, Bluetooth built in.
    • Flexible modes: Standalone smart hub UI, remote radio coordinator, or Matter bridge to Google/Apple Home.
    SMHUB technical vision
    Why SMHUB matters

    Why It Matters

    Smart homes often become fragmented: software on one server, radios on another device, separate bridges for each ecosystem. SMHUB Nano changes that. By bringing radios, Linux-run software, and high-value peripherals together, it delivers a stable, feature-rich, and future-proof experience — without making regular users pay for features they don’t use.

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    Three Ways to Use SMHUB

    SMHUB adapts to your smart system setup. Whether you want (a) a complete standalone hub, (b) a Matter bridge to Google/Apple ecosystems, or (c) a powerful remote radio coordinator for platforms like Home Assistant, OpenHub, HomeSeer and so on – SMHUB gives you the flexibility to choose.

    Standalone Smart Hub

    Standalone Smart Hub

    Use SMHUB as a standalone control hub: Run Zigbee2MQTT, MQTT-broker, Node-Red and pair Zigbee, Thread (or even Z-Wave devices via add-on) directly and manage them through the hub’s built-in apps. No need for external platforms like Home Assistant or OpenHAB – everything runs locally, securely, and reliably.

    Matter Bridge for Google Home or Apple Home or HA

    Matter Bridge for Google Home or Apple Home or HA

    Leverage SMHUB’s Zigbee2MQTT and Matterbridge app to connect Zigbee devices from any manufacturer (via Zigbee2MQTT) and make them visible in Google Home, Apple Home, or other Matter-compatible systems. Seamlessly integrate your devices into any modern ecosystems.

    Standard Remote Coordinator for Home Assistant

    Standard Remote Coordinator for Home Assistant

    Use SMHUB as a dedicated Zigbee/Thread/Z-Wave coordinator connected to your favorite smart control system such as Home Assistant, OpenHAB, HomeSeer or any other. Let your existing smart system software control all end devices via SMHUB’s reliable multi-radio hardware. Utilize Ethernet, USB or Wi-Fi connection

    SMHUB Architecture Overview

    SMHUB Nano Mg24 is a compact Linux-based smart hub powered by the EFR32MG24 radio for Zigbee, Thread, and Matter networks. Runs SMHUB-OS, runs Zigbee2MQTT, Matterbridge, Node-RED, MQTT Broker, Wireguard and more, integrates seamlessly with Home Assistant, HomeSeer, OpenHub.

    Second Radio

    Second Radio

    Co-processing
    • Additional protocol handling
    • Low-latency response path
    • Extended radio features

    Built-in Peripherals

    Service LEDs ×2Service LEDs ×2
    User buttonUser button
    USB-C (power + data)USB-C (power + data)
    Ethernet (100 Mbps)Ethernet (100 Mbps)
    SD card slotSD card slot
    eMMC storageeMMC storage
    Wi-Fi 2.4/5 GHzWi-Fi 2.4/5 GHz
    BluetoothBluetooth

    Problems Today — Solutions with SMHUB Nano

    A clean side-by-side breakdown of what’s wrong and how SMHUB fixes it.

    Compatibility chaos & vendor lock-in; cloud required.

    Run Zigbee2MQTT, MQTT broker (and more) locally on the device.

    Unreliable performance & latency under load.

    Linux-based system with enterprise-grade design; PoE or USB powered for stable installs.

    Hard for pros, confusing for DIY; poor fit for either.

    Enterprise-grade yet DIY-friendly: expansion GPOIs, USB, tiny form factor, clean setup, and open tooling.

    Space constraints & messy installs.

    Small, tidy design; flexible mounting; single-hub footprint.

    UPS Power Module

    The UPS module provides backup power for SMHUB, ensuring uninterrupted operation during outages or unstable supply. It is designed around 2x standard 18650 batteries, supports multiple charging options, and can also be powered by a SOLAR PANEL. This is an early prototype currently under development (yes, we already have tested and even developed enclosure), however market launch can take yet some time, so this is announcement of development, rather than a clear commitment with specific date.

    2x Standard 18650 batteriesHot-swappable 18650 cells, widely available and easy to replace.
    Multiple power inputsCan be charged via USB-C, dedicated DC-IN, SMHUB POE or SOLAR PANEL - making it really power efficient and independent.
    Solar-ready designOptimized charging path allows direct solar panel connection for off-grid or outdoor use.
    Stable power deliveryIntegrated DC-DC converters provide regulated 5V rail for the hub.
    Comprehensive protectionSafeguards against over-discharge, over-charge and short-circuit.
    Multi-level LED indicatorsFour LEDs display battery charge levels; RGB LED shows charging, discharging, or fault status.
    Audible alertsIntegrated buzzer warns of low battery or fault states for immediate awareness.
    User controlsTwo physical buttons allow safe power management, reset, and interaction without disconnecting the hub.
    SPI interfaceEnables host devices (for example, SMHUB) to read UPS status or control its operation directly over SPI communication.
    Broad compatibilityWhile designed initially for SMHUB only, the UPS add-on can power any 5V device, extending its use to other electronics and DIY projects.
    UPS Power Add-on

    Technical Specifications

    Structured engineering overview

    1Core System

    CPU
    2 cores, 1 GHz + 700 MHz
    RAM
    512 MB
    Storage
    8 GB eMMC
    microSD
    Available, support up to 2 TB
    OS
    Linux kernel with modular app support
    Power Supply
    USB-C (Power & Upstream) / Optional PoE Module / Optional UPS connector

    2Wireless Radios

    Zigbee/Thread
    EFR32MG24
    Wi-Fi
    Wi-Fi 6, 2.4 GHz & 5 GHz
    Bluetooth
    Integrated BLE 5.0

    3Antennas

    Zigbee
    External antenna (5 dB)
    Wi-Fi
    Integrated via IPEX connectors, expandable 5 dB
    Bluetooth
    Integrated via IPEX connectors, expandable 5 dB

    4Networking

    Ethernet
    1 × RJ45 (10/100 Mbps)
    Wi-Fi
    Wi-Fi 6, 2.4/5 GHz
    VPN Support
    WireGuard, etc.
    Local Hosting
    Zigbee2MQTT, Matterbridge, Node-RED, Mosquitto

    5I/O & Connectivity

    USB Ports
    1 × USB-A (downstream)
    User control
    1× Button + 2× Service LEDs

    7Physical & Environmental

    Dimensions
    Compact desktop enclosure (custom design)
    Mounting
    Desk or wall-mount (with accessories)
    Operating Temp
    0 – 50 °C
    Cooling
    Passive (silent, fanless design)

    8Software & Integrations

    Package types
    Linux-based packages
    Pre-installed Apps
    Zigbee2MQTT, Matterbridge, Mosquitto MQTT, Node-RED, WireGuard, NodeJS
    App Management
    Web UI
    Firmware
    OTA updates supported
    Security
    Local-first, encrypted connections

    🔹 SMHUB vs. Other SMLIGHT Devices

    Role

    SMHUB: Professional smart cotntrorl hub with local apps, multi-radio support and rich peripherals

    SLZB-06x: Dedicated Ethernet/Wi-Fi Zigbee or Thread coordinator (triple-radio)

    SLZB-MRx: Advanced multi-radio coordinator (Zigbee + Thread + Wi-Fi + BT, quad-radio)

    Operating System

    SMHUB: Linux-based (runs apps and services directly)

    SLZB-06x: SLZB-OS, no apps installation

    SLZB-MRx: SLZB-OS, no apps installation

    Multi-Radio

    SMHUB: Multi onboard radios (Zigbee, Thread, BLE, Wi-Fi)

    SLZB-06x: Triple radio per device (Zigbee/Thread + Wi-FI + BT

    SLZB-MRx: Quad radios integrated (Zigbee, Thread, Wi-Fi and BT)

    Apps & Services

    SMHUB: Runs Zigbee2MQTT, Matterbridge, Node-RED, Mosquitto MQTT, WireGuard, etc.

    SLZB-06x: External apps not supported

    SLZB-MRx: External apps not supported

    Expandability

    SMHUB:

    SLZB-06x: Fixed function, -U series exapndable via USB devices

    SLZB-MRx: Fixed function, -U series exapndable via USB devices

    Performance

    SMHUB: Optimized SoC, designed for 24/7 hub operations

    SLZB-06x: Optimized SoC, very lightweight, low-power

    SLZB-MRx: Optimized SoC, very lightweight, low-power

    Target User

    SMHUB: Business and Etnerprise, advanced users, integrators, professionals, future proof enthusiasts

    SLZB-06x: Smart home builders, DIY smart home enthusiasts

    SLZB-MRx: Demanding users, DIY enthusiasts and hobbyiests needing multi-radio coordinator

    🔹 SMHUB vs. Alternatives

    Setup

    SMHUB: Out-of-box, pre-configured with apps & UI

    Raspberry Pi + USB: Manual OS install, add-ons, USB stick setup

    All-in-one Hubs: Out-of-box

    Multi-Radio

    SMHUB: Multi onboard radios

    Raspberry Pi + USB: Onboard Wi-Fi and BT only, requires USB sticks or pin-headers for more radios

    All-in-one Hubs: Usually fixed radios, not modular

    Performance

    SMHUB: Optimized SoC, Linux OS, built for 24/7 uptime

    Raspberry Pi + USB: For pure hub purposes - overperformance

    All-in-one Hubs: Varies by brand, usually good

    Integration

    SMHUB: Runs Zigbee2MQTT, Node-RED, Matterbridge, WireGuard, etc.

    Raspberry Pi + USB: Possible but requires manual setup, usually via command line (hard)

    All-in-one Hubs: Usually limited to vendor ecosystem

    Maintenance

    SMHUB: Web interface, auto updates planned

    Raspberry Pi + USB: Manual Linux package management

    All-in-one Hubs: Vendor firmware updates

    Community and Openness

    SMHUB: Linux inside

    Raspberry Pi + USB: Fully open, best in class community, DIY-friendly

    All-in-one Hubs: Often closed

    Target Audience

    SMHUB: Corporate-level clients, professionals, advanced enthusiasts

    Raspberry Pi + USB: DIY makers & hobbyists

    All-in-one Hubs: Consumers wanting simplicity

    ✅ SMHUB bridges the gap between dedicated coordinators, DIY setups, and closed consumer hubs. It delivers enterprise reliability, modular expandability, and openness in one device.

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      Frequently Asked Questions

      Here are the most common questions about SMHUB:

      SMHUB is a professional-grade smart control hub running a Linux-based system. It supports multiple radios (Zigbee, Thread, Wi-Fi 6, Bluetooth), Ethernet, USB, and like PoE. It is designed to host popular open-source apps such as Zigbee2MQTT, Matterbridge, Node-RED, Mosquitto MQTT and WireGuard locally.
      Yes. SMHUB can function as a standalone hub, running apps locally on its Linux system, or as a coordinator only, where the hardware manages radios (Zigbee, Thread) but the control software runs on another server or platform. Also, it can expose Zigbee devices to any Matter-compatible ecosystem utilizing power of Matterbrdige app
      SMHUB works seamlessly with Home Assistant, OpenHAB, HomeSeer, and other systems that support Zigbee2MQTT, or MQTT. Thanks to its Linux base, it can integrate with most open-source smart home ecosystems. Also, utilizing Matterbridge, it can expose devices to proprietary smart systems like Google Home or Apple Home
      Yes. SMHUB runs fully offline for local automation. Internet connectivity is only required if you want to integrate cloud services or remote access. You can build automations using Zigbee2MQTT + Node-RED. Or, you can expose your Zigbee devices to GoogleHome or AppleHome via Matterbrdige. And, of course, it works with such local smart control platforms like Home Assistant or OpenHub - all this locally
      SMHUB provides a web interface for system configuration and app management. You can install and manage packages like Zigbee2MQTT or Node-RED directly through the interface. Connect SMHUB to your network, open you rbrowser and go to https://smhub.local
      Yes, through Matterbridge software, SMHUB can bridge Zigbee devices into Matter ecosystems such as Google Home or Apple HomeKit.
      Yes. Firmware and software updates will gradually unlock more peripherals and functions. We publish changelogs with each release.
      SMHUB is designed as a professional, and future-proof hub:
      - Multi radios (Zigbee + Thread + Wi-FI + Bluetooth)
      - Linux-based OS (called SMHUB-OS) for stability and flexibility
      - Local hosting of popular open-source apps - Zigbee2MQTT, Node-RED, Mosquitto-MQTT broker, Matterbrdige etc
      - Expandable hardware with multiple I/O options
      Basic setup is straightforward through the web interface. Advanced users can customize the system further, from both hardware perspective (via USB/UART/SPI/I2C) and software perspective.