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
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Chipset: TI CC26xx series.
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Protocol: Zigbee 3.0 and legacy devices.
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Software: Zigbee2MQTT (Z2M).
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Integration:
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Pairs and manages Zigbee devices directly.
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Publishes states/events via the preinstalled Mosquitto MQTT broker.
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Compatible with Home Assistant, OpenHAB, Node-RED, and other MQTT platforms.
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Coordinator Mode: Can operate as a standalone Zigbee coordinator, without additional servers.
6.2 Thread
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Chipset: Silicon Labs EFR32MG series.
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Protocol: Thread 1.1/1.2.
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Integration:
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Acts as an OpenThread Border Router (OTBR).
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Works with Matterbridge, exposing Thread/Zigbee devices into Matter.
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Use Cases:
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Bridging Zigbee sensors to Matter.
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Running mixed Zigbee + Thread networks.
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6.3 Z-Wave
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Radio Module: EFR32ZG23 expansion module.
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Protocol: Z-Wave 700/800 series, including Z-Wave Long Range (LR).
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Software: Managed via Z-Wave JS (installable).
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Integration:
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Local Z-Wave or Z-Wave LR networks.
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Automation via Node-RED and MQTT.
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Hardware: Dedicated LED and reset/flash pins for diagnostics and firmware updates.
6.4 4G/LTE (in development)
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Module: SIM7672G LTE modem.
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Capabilities:
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LTE Cat 1 connectivity.
- Interfaces: USB, debug UART.
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Antenna connectors for LTE and GNSS.
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SIM slot with SIM detection.
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Status: Hardware fully integrated, software support is in active development.
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Planned Functions:
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LTE fallback connectivity.
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Remote site deployments without Ethernet/Wi-Fi.
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6.5 Wi-Fi
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Bands: Dual-band 2.4 GHz and 5 GHz.
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Modes: Access Point (AP) and Client.
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Use Cases:
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2.4 GHz: long range, high compatibility.
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5 GHz: higher bandwidth, reduced interference.
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Integration: Used for device connectivity and as a network backbone when Ethernet is not available.
6.6 Bluetooth
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Version: Bluetooth 5.0.
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Support: Bluetooth Low Energy (BLE).
6.7 Multi-Radio Operation
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Zigbee + Thread + Wi-Fi + Bluetooth operate simultaneously out of the box.
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Z-Wave and 4G/LTE are available via expansion modules.
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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:
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Bridges Zigbee and Thread devices into Matter.
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Compatible with Google Home, Apple Home, Amazon Alexa, SmartThings.
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Entirely local bridging — no third-party cloud services required.