Description
SONOFF Dongle Lite MG21 is a compact USB dongle powered by the reliable EFR32MG21 chip. It works as a Zigbee coordinator for Home Assistant, openHAB, Zigbee2MQTT, and other open-source smart home platforms, allowing local control of Zigbee devices. It can also be flashed to work as a Zigbee Router, OpenThread RCP, or MultiPAN RCP.
Key Features
- EFR32MG21 Zigbee SoC
- Zigbee 3.0 / IEEE 802.15.4
- Works with Home Assistant, Zigbee2MQTT, openHAB
- Supports firmware flashing via SONOFF Dongle Flasher
- Can work as Coordinator, Router, OpenThread RCP, or MultiPAN RCP
- Compact USB design
- 0.5m USB extension cable included
- Up to 135m signal range in open line of sight
Specifications
- Model: Dongle-LMG21
- Input: 5V ⎓ 500mA
- USB-Serial Chip: CP2102(N)
- RF Frequency: 2.4GHz
- Signal Strength: Max 20dBi + 2dBi antenna gain
- Standby Power: 60mW
- Working Temperature: -10°C to 40°C
- Working Humidity: 5%–95% RH
- Supported OS: Windows, Ubuntu, Raspberry Pi OS / Raspbian, Docker
- Dimensions: 18.6 × 10.1 × 133mm
Why Choose SONOFF Dongle-LMG21?
A perfect choice for building a reliable local Zigbee smart home system with Home Assistant or Zigbee2MQTT. Its compact size, MG21 chip, and flexible firmware options make it suitable for users who want stable control and future-ready smart home integration.