Skip to main content

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.

Back to top