# SMHUB product description # 1. Introduction ## Enterprise-Ready Smart Home Platform SMHUB is a **Linux-based smart home hub** designed for reliability, scalability, and openness. It runs a lightweight **Linux OS layer** with **Node.js preinstalled**, making it capable of running **major open-source smart applications** such as: - **Zigbee2MQTT (Z2M)** → enterprise-proven Zigbee integration with MQTT backbone. - **Matterbridge** → bridging Zigbee and Thread devices into the Matter ecosystem (Google Home, Apple Home, Amazon Alexa). - **Node-RED** → a flow-based automation tool for building powerful automations and integrations. This software stack ensures SMHUB can be deployed in **enterprise projects**, **system integrator environments**, and **large-scale smart installations** while remaining flexible for continuous growth. ## Modular and Scalable Unlike fixed-function consumer hubs, SMHUB is **hardware- and software-extensible**: - Additional radios (Z-Wave, 4G/LTE) can be added via modules or USB dongles. - System apps can be extended with **Node.js libraries or Python scripts**. - Storage options include onboard eMMC and expandable SD card storage. - Remote management is possible through **SSH, VPN (WireGuard), and DDNS services**. This makes SMHUB suitable for **smart buildings, multi-site enterprise deployments, and integrators who need a universal controller**. ## For Home Users & DIY Enthusiasts While SMHUB is enterprise-ready, it is also **accessible to enthusiasts**: - **Preinstalled apps** → Zigbee2MQTT, Matterbridge, Node-RED work out of the box. - **Web interface** → intuitive dashboard for system monitoring and configuration. - **USB passthrough** → attach external dongles (Zigbee, Thread, Z-Wave, etc.) for custom setups. - **Ambilight LEDs, IR transmitter/receiver, buzzer, and audio** for interactive smart home features. Whether you’re an integrator managing **hundreds of devices across buildings** or a DIY user running **Home Assistant in your living room**, SMHUB adapts to your use case. # 2. Hardware Overview SMHUB is a **Linux-based modular hub** designed to unify connectivity, automation, and control across multiple smart home and IoT standards. Its hardware architecture combines **high-performance networking, multiple radios, built-in peripherals, and modular power options**. ## 2.1 Core System - **Processor:** 2 separate cores: C906@1GHz (for Linux) + C906@700MHz (for RTOS). *C906 is an ultra-high-efficiency processor compatible with the RV64IMA\[F\]C\[V\] instruction set. It is one of the industry's first mass-produced processors supporting the RISC-V vector extension.* - **NPU (Neural Processing Unit):** 0.5 TOPS@INT8. - **Memory:** 512 MB RAM. - **Storage:** Onboard eMMC storage plus **microSD slot** for expansion. - **Operating System:** Embedded Linux with Node.js runtime, supporting smart applications such as Zigbee2MQTT, Matterbridge, Node-RED, and custom Node.js/Python services. ## 2.2 Networking - **Ethernet:** Integrated RJ-45 port for wired backbone connectivity. - **Wi-Fi:** - Dual-band **2.4 GHz and 5 GHz** support. - Can operate in **Access Point** mode or **Client** mode. - CLI setup available, with web UI configuration in development. - **Bluetooth:** - **Bluetooth 5.0** compliant. - Supports **Bluetooth Low Energy (BLE)** for pairing, sensors, and beacons. - Available for integrations and custom applications. ## 2.3 Radios - **Zigbee (CC26xx)** → dedicated radio for Zigbee networks, fully compatible with Zigbee2MQTT. - **Thread (EFR32MG series)** → native support for Thread and OpenThread Border Router (OTBR). - **EFR32ZG23 Expansion Module** → provides **Sub-GHz communications including Z-Wave**, integrated via UART3 with dedicated reset, flash, and LED lines. ## 2.4 Expansion Modules - **UPS Module (SM-HUB UPS)** - Powered by **18650 Li-ion battery cells**. - Charging via TP5100. - Step-up/step-down converters deliver **5 V, 3.3 V, and 1.8 V rails**. - **INA226 sensor** monitors voltage and current for telemetry. - Solar/DC charging input supported. - **PoE Module (SM-HUB PoE)** - 802.3af compliant (Power over Ethernet). - Converts Ethernet-supplied power to regulated 5 V. - Surge and ESD protection integrated. - “Power-check” signals exposed for system monitoring. - **4G/LTE Module (SM-HUB 4G)** - Based on **SIM7672G modem** with **GNSS (GPS/GLONASS)**. - NanoSIM slot with SIM detect. - Interfaces: main UART, USB, debug UART. - LTE and GNSS antenna connectors. - Power and network LED indicators. ## 2.5 Built-in Peripherals - **LEDs:** - **12 × WS2812B addressable RGB LEDs** – configurable for system visualization, animations, or Ambilight effects. - **4 × service LEDs** – indicating power, network, and radio activity. - **Buttons:** - **Reset button**. - **Pairing/Function button**. - **User-configurable button**. - **Audio Output:** - **3.5 mm audio jack**. - Supports system notifications, alerts, or media playback. - **Buzzer:** - Integrated piezoelectric buzzer. - Usable for system alerts, notifications, or user automation rules. - **IR Modules:** - **IR transmitter** for controlling TVs, AC units, and other IR devices. - **IR receiver** for capturing signals from existing remotes. ## 2.6 Power Architecture - **Primary Power:** USB-C PD input. - **Optional Power Sources:** - PoE (via PoE module). - UPS battery module. - Solar/DC input (through UPS module). - **Smart USB Power Switching:** Automatic host/device detection on USB-C CC lines with integrated FET switching. Prevents reverse powering and ensures safe operation whether SMHUB is supplying power to peripherals or being powered itself. ## 2.7 Expansion & DIY Interfaces For developers and hardware enthusiasts, SMHUB exposes additional interfaces: - **GPIO headers** with UART, SPI, and I²C. - **DIY pinouts** for custom modules, sensors, or experimental expansions. # 3. Getting Started This section explains how to unbox, power, and access your SMHUB for the first time. --- ## 3.1 Unboxing Inside the SMHUB package, you will find: - **SMHUB main unit** - **2x 5dB antennas** - **Quick start guide** - (Optional, depending on order) **PoE module**, **UPS module**, or **4G/LTE module** ⚠️ Some accessories such as **18650 batteries (for UPS)**, **SIM card (for LTE)**, or **external antennas** may need to be purchased separately. --- ## 3.2 Powering SMHUB SMHUB supports multiple power options. Choose the one that fits your setup: 1. **USB-C Power (default)** - Connect the included USB-C cable to the **USB-C (upstream/power) port** on the back of the device. - Use a 5V/2A USB-C adapter. 2. **PoE (Power over Ethernet)** *(requires PoE module)* - Install the PoE add-on module. - Connect SMHUB to a PoE-enabled Ethernet switch (802.3af standard). 3. **UPS Module with Batteries** *(optional)* - Insert supported **18650 Li-ion cells** into the UPS board. - Connect the UPS board to the main unit. - SMHUB will automatically switch to battery power during outages. 4. **Solar/DC Input via UPS** *(optional)* - If using the UPS module, SMHUB can also be powered from an external DC or solar supply. ⚠️ **Important:** Thanks to integrated **USB power switching logic**, SMHUB automatically detects whether it should act as a **host** (powering peripherals) or **device** (drawing power). --- ## 3.3 Network Connection You can connect SMHUB to your network in different ways: 1. **Ethernet (recommended)** - Connect an Ethernet cable to the LAN port. - SMHUB will obtain an IP address via DHCP. 2. **Wi-Fi Client Mode** - Connect via CLI/SSH (see section 3.4). - Use the `nmcli` command to scan and connect to your Wi-Fi network. - Web-based Wi-Fi setup is in development. 3. **Wi-Fi Access Point Mode** - On first boot, SMHUB may start in AP mode. - SSID: `SMHUB-XXXX` (last 4 characters of MAC). - Default password: `smhub1234`. - Connect and then open the web UI. --- ## 3.4 First Access Once powered and connected, you can access SMHUB in several ways: ### Web Interface

On the first SMHUB models (with old firmware) the web interface will be on port **3000** To it access use: `http://smhub.local:3000`**If you have such a device, we strongly recommend that you immediately update it via USB according to [this guide](https://smlight.tech/support/manuals/books/smhub/page/smhub-early-adopter-quick-start-guide#bkmrk-updating-smhub-firmw)** Old firmware has critical issues that have been fixed in the new version!

- Open a browser and go to: - `http://smhub.local` (mDNS) - or the IP address assigned via DHCP. ### SSH Access - Connect from a terminal: `ssh smlight@smhub.local` - Default credentials are user: **smlight**, password: **smlight** - Use SSH for advanced configuration and Wi-Fi setup until the web Wi-Fi interface is fully implemented. ### USB-C Upstream Mode - If connected via the **USB-C upstream port**, SMHUB may appear as a network device to your host machine. - This allows direct connection without a router. --- ## 3.5 First Boot Behavior - The system automatically starts **Zigbee2MQTT** service. Other services like **Matterbridge** and **Node-RED** could be run manually afterwards. - Service LEDs and RGB LEDs will indicate boot sequence and status. - On first login, you should: 1. Change the default password (via web UI or SSH). 2. Configure your preferred network connection (Ethernet or Wi-Fi). 3. Update system software (see Section 4). --- ## 3.6 Safety Notes - Always use certified power supplies when running from USB-C. - If using the UPS module, only install **good quality18650 cells**. - Ensure proper ventilation - SMHUB is designed for continuous 24/7 operation. # 4. Software & System SMHUB is powered by a **Linux-based operating system** with an integrated **Node.js runtime** and a suite of **smart home applications**. This software foundation provides both **enterprise-grade stability** and **DIY flexibility**. --- ## 4.1 Operating System - **Base:** Lightweight Linux distribution optimized for embedded controllers. - **Runtime:** Node.js preinstalled for native execution of Node.js applications. - **Package Management:** Extendable via Linux packages and Python scripts. - **Update System:** - Secure firmware updates. - Individual application updates independent of OS. --- ## 4.2 Preinstalled Applications ### Zigbee2MQTT (Z2M) - **Preinstalled by default**. - Works with onboard CC26xx or EFR32XX Zigbee radios. - Publishes device data to MQTT. - Compatible with Home Assistant, OpenHAB, Node-RED, etc. - Local dashboard for Zigbee pairing and monitoring. ### Matterbridge - **Preinstalled by default**. - Bridges Zigbee/Thread devices into the Matter ecosystem. - Compatible with Google Home, Apple Home, Amazon Alexa, SmartThings. ### Node-RED - **Preinstalled by default**. - Visual, flow-based automation editor. - Includes libraries for MQTT, Z2M, and Matterbridge. - Accessible via web browser. ### Mosquitto MQTT Broker - **Preinstalled and running by default**. - Provides the MQTT backbone for Zigbee2MQTT, Node-RED, and Matterbridge. - Allows additional MQTT clients to integrate seamlessly with SMHUB. --- ## 4.3 System Services - **Networking** - Ethernet (default). - Wi-Fi 2.4 GHz and 5 GHz (AP and Client modes). - Bluetooth 5.0 with BLE. - **VPN Support** - WireGuard preinstalled. - Secure remote access tunnels. - **USB Passthrough** - Full passthrough of USB dongles to the host stack. - USB protection logic for safe host/device switching. --- ## 4.4 Built-In Visual System - **Ambilight System** - Runs continuously by default. - Uses 12 × WS2812B RGB LEDs for system visualization, notifications, or ambient effects. - User-configurable patterns and colors. - **Service LEDs** - Indicate power, network status, and radio activity. --- ## 4.5 Features in Development - **Buzzer Control** - System and user notifications. - **Audio Output (3.5 mm jack)** - System alerts, notifications, and future media playback. - **IR Transmitter & Receiver** - IR learning and replay for remote-controlled devices. - **Extended LED Controls** - Custom animations and media sync in Ambilight. --- ## 4.6 Developer Options - Full **SSH access**. - Node.js environment ready. - Support for Python scripting and Linux daemons. - Exposed GPIO, UART, I²C, and SPI for DIY hardware extensions. # 5. Network & Connectivity SMHUB provides robust and flexible networking options to ensure reliable operation in both **enterprise environments** and **home setups**. It can connect via **Ethernet, Wi-Fi (2.4/5 GHz), Bluetooth**, and optionally via **VPN tunnels and DDNS services** for secure remote access. --- ## 5.1 Ethernet - **Primary interface** for stable operation. - Supports **100Mb Ethernet** via onboard RJ-45 port. - Recommended for enterprise and multi-device deployments. - Provides lowest latency and highest reliability compared to wireless options. --- ## 5.2 Wi-Fi SMHUB includes **dual-band Wi-Fi** with both **2.4 GHz** and **5 GHz** support. - **2.4 GHz** - Longer range, higher wall penetration. - Ideal for IoT-heavy environments with many legacy devices. - **5 GHz** - Higher throughput. - Less interference in crowded environments. - Suitable for high-speed data transfers and local automations. **Operating Modes:** - **Client Mode** - SMHUB connects to an existing Wi-Fi network. - Configurable via CLI (`nmcli`) or SSH. - Web UI configuration will be available in upcoming updates. - **Access Point Mode (in development)** - SMHUB creates its own Wi-Fi network. - Default SSID: `SMHUB-XXXX` (last 4 MAC digits). - Default password: `smhub1234`. - Useful for first-time setup or when no LAN is available. --- ## 5.3 Bluetooth - **Bluetooth 5.0** with **BLE (Bluetooth Low Energy)** support. - Future updates will expand Bluetooth integration into the web interface. --- ## 5.4 VPN (WireGuard) SMHUB includes **WireGuard VPN** for secure tunneling. - Provides encrypted remote access to SMHUB and connected devices. - Suitable for enterprise remote deployments or secure home use. - Configuration available via CLI or SSH. - Can be combined with DDNS for access without a static IP. --- ## 5.5 USB Networking When connected via **USB-C upstream**, SMHUB can act as a **network device** to the host PC: - Appears as an Ethernet-over-USB adapter. - Provides direct access without needing an external router or switch. - Useful for initial setup, debugging, or portable use cases. # 6. Radios & Protocols SMHUB integrates multiple radios to support a **broad range of smart home and IoT protocols**, making it a true **multi-radio coordinator and Matter bridge**. --- ## 6.1 Zigbee - **Chipset:** TI CC26xx series. - **Port:** /dev/ttyS1 - **Baudrate**: 115200 - **RTS/CTS**: false - **Protocol:** Zigbee 3.0 and legacy devices. - **Software:** Zigbee2MQTT (Z2M). - **Integration:** - Pairs and manages Zigbee devices directly. - Publishes states/events via the preinstalled **Mosquitto MQTT broker**. - Compatible with Home Assistant, OpenHAB, Node-RED, and other MQTT platforms. - **Coordinator Mode:** Can operate as a standalone Zigbee coordinator, without additional servers. --- ## 6.2 Thread - **Chipset:** Silicon Labs EFR32MG series. - **Port:** /dev/ttyS2 - **Baudrate**: 115200 - **RTS/CTS**: false - **Protocol:** Thread 1.1/1.2. - **Integration:** - Acts as an **OpenThread Border Router (OTBR)**. - Works with **Matterbridge**, exposing Thread/Zigbee devices into Matter. - **Use Cases:** - Bridging Zigbee sensors to Matter. - Running mixed Zigbee + Thread networks. --- ## 6.3 Z-Wave - **Radio Module:** EFR32ZG23 expansion module. - **Port:** /dev/ttyS3 - **Baudrate**: 115200 - **RTS/CTS**: false - **Protocol:** Z-Wave 700/800 series, including **Z-Wave Long Range (LR)**. - **Software:** Managed via Z-Wave JS (installable). - **Integration:** - Local Z-Wave or Z-Wave LR networks. - Automation via Node-RED and MQTT. - **Hardware:** Dedicated LED and reset/flash pins for diagnostics and firmware updates. --- ## 6.4 4G/LTE (in development) - **Module:** SIM7672G LTE modem. - **Port:** /dev/ttyS4 - **Baudrate**: 115200 - **RTS/CTS**: false - **Capabilities:** - LTE Cat 1 connectivity. - Interfaces: USB, debug UART. - Antenna connectors for LTE and GNSS. - SIM slot with SIM detection. - **Status:** Hardware fully integrated, **software support is in active development**. - **Planned Functions:** - LTE fallback connectivity. - Remote site deployments without Ethernet/Wi-Fi. --- ## 6.5 Wi-Fi - **Bands:** Dual-band **2.4 GHz** and **5 GHz**. - **Modes:** Access Point (AP) and Client. - **Use Cases:** - 2.4 GHz: long range, high compatibility. - 5 GHz: higher bandwidth, reduced interference. - **Integration:** Used for device connectivity and as a network backbone when Ethernet is not available. --- ## 6.6 Bluetooth - **Version:** Bluetooth 5.0. - **Support:** Bluetooth Low Energy (BLE). --- ## 6.7 Multi-Radio Operation - Zigbee + Thread + Wi-Fi + Bluetooth operate simultaneously out of the box. - Z-Wave and 4G/LTE are available via expansion modules. - Hardware and firmware are designed to minimize interference and ensure stable concurrent radio operations. --- ## 6.8 Matter Bridge SMHUB can function as a **Matter bridge**, allowing non-Matter devices to join modern ecosystems: - Bridges Zigbee and Thread devices into Matter. - Compatible with Google Home, Apple Home, Amazon Alexa, SmartThings. - Entirely **local bridging** — no third-party cloud services required. # 7. User Interface The SMHUB web interface is the primary way to configure and manage the system. It provides access to dashboards, built-in applications, and detailed system settings. --- ## 7.1 Dashboard The **Dashboard** is the starting page of the interface and shows an overview of the hub: - **System Information** - Device model, firmware version, uptime. - CPU load, memory usage, and storage status. - **Network Status** - Ethernet/Wi-Fi interfaces with IP addresses. - VPN (WireGuard) status. - **Radio Status** - Zigbee, Thread, Z-Wave (if installed), Bluetooth. - Service LED indicators and Ambilight effects. - **Service Overview** - Running state of **Zigbee2MQTT, Matterbridge, Node-RED, Mosquitto MQTT broker**. - Quick buttons to start/stop services. --- ## 7.2 Zigbee2MQTT - Direct integration with the **Zigbee2MQTT frontend**. - Allows pairing, removing, and managing Zigbee devices. - Displays a network map, device states, and logs. - Zigbee devices are automatically published to the local **Mosquitto MQTT broker**. --- ## 7.3 Matterbridge - Provides direct access to the **Matterbridge frontend**. - Manages bridging between Zigbee/Thread devices and Matter ecosystems (Google Home, Apple Home, Alexa, SmartThings). - Allows configuration of bridge modes and Matter controllers. --- ## 7.4 Node-RED - Opens the **Node-RED frontend**, a visual automation editor. - Users can create and deploy flows combining Zigbee2MQTT, Matterbridge, MQTT, HTTP APIs, or custom integrations. - Pre-installed flows include templates for MQTT and device automation. --- ## 7.5 Apps The **Apps** section acts as a package manager for SMHUB applications. - **App Management** - Install, uninstall, or update applications. - Configure settings per application. - Start/stop applications with one click. - **Preinstalled Apps** - Zigbee2MQTT - Matterbridge - Node-RED - Mosquitto MQTT broker - **Additional Apps** - Future apps (e.g., Z-Wave JS, custom services) can be added here. - Apps can be distributed as packages and installed via this page. --- ## 7.6 Settings The **Settings** section contains all configuration options for SMHUB. It is divided into modules, each with tabs for **configuration, telemetry, and debug** where available. ### System - Hostname, time zone, system info. - User management (accounts, passwords). - Updates (firmware & app updates). - Backup & restore. - Factory reset. ### Network - Ethernet (DHCP/static). - Wi-Fi (2.4/5 GHz, AP/Client mode). - VPN (WireGuard). - DDNS configuration (DuckDNS, others). - USB-over-network. ### Radios - Zigbee: coordinator settings, pairing mode, diagnostics. - Thread: OTBR management, Matterbridge integration. - Z-Wave (if module installed): inclusion/exclusion, network management. - Bluetooth: enable/disable, scanning, BLE integrations. - 4G/LTE (in development): SIM/APN settings, LTE telemetry, GPS data. ### Audio & Buzzer - Volume control (3.5 mm output). - Enable/disable system notification sounds. - Buzzer toggle and test alerts. ### LEDs - Service LED control. - Ambilight modes (status, animations, user-defined patterns). ### IR - IR transmitter: configure/send commands. - IR receiver: learn remote commands and store them. ### Storage - SD card and eMMC info. - Format, mount/unmount. - Telemetry: usage stats. ### Security - User authentication settings. - SSH toggle. - VPN certificates and DDNS keys. - Firewall and remote access rules. # 8. Modules & Extensions SMHUB is designed to be modular. The **main board** provides essential radios, networking, and I/O, while additional **hardware modules** extend functionality for power resilience, connectivity, and advanced integrations. --- ## 8.1 USB Passthrough - **Purpose:** Enables SMHUB to act either as a **USB host** (powering connected peripherals) or as a **USB device** (connected to a PC or another host). - **Logic:** - Automatically decides whether to supply or draw power. - Prevents reverse powering through integrated FET switching. - **Use Cases:** - Attach Z-Wave or extra Zigbee dongles, printers, audio devices, storage etc. - Connect SMHUB to a PC for development/debugging. - Power downstream devices safely. --- ## 8.2 SD Card - **Slot:** Standard microSD slot on the main board. - **Purpose:** Expand storage for logs, app data, or backups. - **Integration:** - Mounted automatically by the Linux OS. - Users can format, mount/unmount, and monitor usage from the UI. - Support up to 2Tb volume. --- ## 8.3 PoE Module - **Standard:** IEEE 802.3af-compliant. - **Input:** Power delivered via Ethernet cable from a PoE-enabled switch or injector. - **Output:** Stable **5V regulated** supply to the hub. - **Protection:** Surge and ESD protection integrated. - **Monitoring:** “PoE Power Check” exposed in the system for telemetry. - **Use Case:** Ideal for enterprise deployments where powering over Ethernet is standard. --- ## 8.4 UPS Module - **Battery:** Supports **18650 Li-ion cells** (user-installed). - **Charger:** advanced circuit with overcharge/undervoltage protection. - **Conversion:** Step-up/step-down converters to maintain **5V, 3.3V, 1.8V** rails. - **Telemetry:** - Monitors voltage/current - Provides battery health and charge state in the UI. - **Inputs:** Can also accept **DC power** or **solar panels**, making SMHUB deployable off-grid. - **Use Case:** Ensures uninterrupted operation during outages. --- ## 8.5 4G/LTE Module - **Connectivity:** LTE Cat 1 with fallback modes. - **Interfaces:** - Main UART. - USB. - Debug UART. - **SIM Slot:** NanoSIM with detection circuitry. - **Antennas:** Dedicated connectors for LTE and GNSS. - **UI Integration:** - Settings → Radios → 4G/LTE. - SIM/APN configuration, LTE signal telemetry. - **Status:** Hardware available, **software support in development**. --- ## 8.6 DIY Pinouts & Interfaces For advanced users and developers, SMHUB exposes additional hardware interfaces: - **GPIO pins** for general use. - **UART, SPI, and I²C** buses. - **Custom module connectors** for prototyping or specialized hardware. - **Use Case:** Attach sensors, control boards, or experimental expansions not covered by official modules. --- ## 8.7 Integrated Peripherals While not separate modules, the following are considered part of SMHUB’s extension capabilities: - **IR Transmitter & Receiver** - Control TVs, AC units, and IR-based devices. - Capture IR codes for learning mode. - **Audio Output (3.5 mm)** - System alerts and future media/streaming support. - **Buzzer** - Local audible notifications. - **LED Systems** - **12 WS2812B RGB LEDs (Ambilight)** – running by default, user configurable. - **4 Service LEDs** – network, power, radio status. # 10. Glossary **Ambilight** – Integrated RGB LED ring used for status indication and visual effects. **Apps** – Modular software packages (e.g., Zigbee2MQTT, Node-RED) that can be installed/uninstalled independently on SMHUB. **BLE (Bluetooth Low Energy)** – Energy-efficient version of Bluetooth for sensors, tags, and small IoT devices. **DDNS (Dynamic DNS)** – A service that maps a dynamic IP to a permanent domain name for remote access. **Matter** – A connectivity standard that allows devices from different ecosystems (Google, Apple, Amazon, SmartThings) to interoperate. **Matterbridge** – An application that bridges Zigbee/Thread devices to the Matter ecosystem. **MQTT (Message Queuing Telemetry Transport)** – A lightweight messaging protocol used for IoT communications. SMHUB includes a built-in **Mosquitto MQTT broker**. **Node-RED** – A flow-based programming tool for IoT automation, preinstalled on SMHUB. **OTBR (OpenThread Border Router)** – Service that connects Thread devices to IP networks. **PoE (Power over Ethernet)** – A method of delivering power and data over the same Ethernet cable. **UPS (Uninterruptible Power Supply)** – Add-on module with 18650 cells providing backup power during outages. **WireGuard** – A modern VPN protocol, preinstalled on SMHUB for secure remote access. **Zigbee2MQTT (Z2M)** – Application that connects Zigbee devices to MQTT brokers, enabling integration with multiple smart home platforms. **Z-Wave JS** – An open-source software stack for managing Z-Wave devices.