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This USB dongle serves as a Zigbee 3.0 coordinator device specifically engineered for home automation applications. Based on the Silicon Labs EFR32MG21 microcontroller paired with CH340E USB interface hardware, it provides wireless communication capabilities for smart home networks. The device arrives pre-configured with EZSP v8 protocol, allowing immediate deployment with popular open-source home automation platforms without requiring additional firmware flashing procedures from the user.
The dongle combines essential hardware components in a practical plastic shell enclosure designed for reliable everyday use in home environments.
This coordinator dongle serves specific functions within home automation ecosystems, acting as the central communication point for Zigbee device networks.
This product offers specific technical advantages for users building or expanding Zigbee-based home automation systems.
Silicon Labs EFR32MG21 Zigbee 3.0 USB dongle adapter for home automation with +20dBm output gain PCB antenna and plastic shell pre-flashed with EZSP v8 protocol for Home Assistant ZHA or Zigbee2MQTT compatibility
£23.00
Sale price
£23.00
Regular price
Silicon Labs EFR32MG21 Zigbee 3.0 USB Dongle with +20dBm Output Gain for Home Assistant Integration

Features and Construction

Material and Build
Constructed with a plastic housing shell that protects the internal electronics, the device contains an EFR32MG21 microcontroller chip responsible for Zigbee protocol processing. This is complemented by a CH340E chip handling USB communication interfacing, creating a complete solution that translates between USB serial data and wireless Zigbee network communications. The assembly prioritises functional reliability over aesthetic considerations, focusing on stable operation in varied home automation scenarios.Size and Practical Fit
While exact dimensional specifications aren't provided, the plastic shell design suggests a compact form factor suitable for direct connection to computer USB ports or compatible single-board computers like Raspberry Pi devices. The integrated PCB antenna provides wireless capability without external attachments, maintaining a self-contained profile that works well in home office setups or discreet installation locations near home automation hubs.Uses and Placement

Event or Professional Use
For custom automation projects or professional smart home installations, the +20dBm output gain provides extended wireless range that can cover larger residential spaces or multiple-room configurations. The pre-flashed EZSP v8 protocol allows immediate testing and deployment without additional configuration steps, speeding up development cycles for automation enthusiasts or installers working with open-source platforms. Compatibility with Zigbee2MQTT in its pre-alpha stage offers early access to emerging integration options.Everyday Home Use
In typical residential settings, the device integrates directly with Home Assistant's ZHA (Zigbee Home Automation) integration, serving as the coordinator for lights, sensors, switches, and other Zigbee-enabled devices throughout the home. The plastic shell provides adequate protection for continuous operation in living spaces, while the standard 115200 baud rate ensures reliable communication with the host system without requiring advanced technical configuration from end users.Benefits and Buying Value
