ZigBee gateway SONOFF Dongle-LMG21 (Home Assistant, openHAB, Zigbee2MQTT)

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  • Code: INN_56964
  • Manufacturer: Sonoff
  • Availability: 1 working day
  • 19.27 EUR
  • szt.

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ZigBee SONOFF Dongle-LMG21 gateway (Home Assistant, openHAB, Zigbee2MQTT)

SONOFF Dongle-LMG21 is a compact and universal USB ZigBee/Thread gateway, designed for stable and flexible integration of smart home devices with popular open source platforms. Thanks to the proven EFR32MG21 chip, adjustable antenna, multi-mode operation (coordinator, router, Thread RCP), and ready-made tools for quick flashing, the device is a functional communication center for systems based on Home Assistant, Zigbee2MQTT, or openHAB.

USB adapter with black antenna, placed on a background with blue hexagons.

Stable EFR32MG21 chip – the heart of your ZigBee network

The Silicon Labs EFR32MG21 chipset ensures low power consumption, stable communication and full use of the hardware potential, which translates into reliable operation even with an extensive network of ZigBee devices.

Close-up of Sonoff USB adapters and photos showing their use with the board and computer

One device – many functions

The Dongle-LMG21 can operate as a ZigBee coordinator, ZigBee router, Thread RCP, or in MultiPAN mode, enabling simultaneous operation of ZigBee and Thread devices. This provides extensive configuration flexibility – for both beginners and those planning more advanced Matter over Thread installations. The dedicated SONOFF Dongle Flasher tool and instructional page make updating the firmware a snap. This is a great convenience for those who want to quickly adapt the device to a specific application.

Sonoff USB adapter with antenna, with additional thumbnails showing connection to Raspberry Pi and laptop

Compatible with open platforms

The device was designed with open source environments in mind. It seamlessly integrates with popular automation systems, enabling local control, scene expansion, and full data control – without dependence on the manufacturer's cloud.

Sonoff USB adapter with black antenna on dark background

Adjustable antenna and greater range

The cleverly designed, adjustable antenna allows for customization to suit installation conditions. A stable range of up to 140 m is possible in open space, making it easy to build a reliable ZigBee network in larger apartments or single-family homes.

Sonoff USB adapter with black antenna in top view on dark background

Compact, solid construction

The ultrasonically welded housing combines compact dimensions with high durability. The dongle is approximately 65% smaller than older designs, so it doesn't take up space near the USB port and is also ideal for installation with mini-computers or SBC servers. A 0.5m USB extension cable is included, allowing you to extend the dongle away from the computer or Raspberry Pi case. This solution effectively reduces electromagnetic interference and improves the stability of wireless communication.

Sonoff Dongle Lite MG21 set including packaging, manual, USB cable and antenna adapter

Included:

  • SONOFF Dongle-LMG21 ZigBee Gateway
  • Antenna with adjustable angle
  • USB extension cable (0.5 m)
  • User manual

ProducentSONOFF
ModelDongle-LMG21
Zasilanie 5 V ⎓ 500 mA
Standard ZigBee IEEE 802.15.4
Temperatura robocza od -10°C do 60°C
Materiał obudowyaluminium, PC + ABS
Kolor ciemnoszary
Wymiary dongla 43 × 18,5 mm
Długość anteny90 mm

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