LEMONA

Smart home ZigBee dongle Lite MG21 USB MQTT

Product Code: SONOFF-LMG21
e-price
SONOFF
Brand
More similar products
Price when using LEMONA+ card:
and get a discount from
2.98
(-13%)
19.92

Price range

AmountPrice incl. VAT (pcs)
1+
22.90
wholesale

Min. qty: 1

Unit: pcs

Total:

22.90

Price when purchased online

lemona shopPickup at the LEMONA electronics store within 2 hours (if the item is in the store and the order is placed before 3 p.m.)

Available2 pcs
Vilnius Žirmūnai Store
Available1 pcs
Vilnius Naujamiestis Store
Available2 pcs
Kaunas Store
Available2 pcs
Klaipėda Store
Available2 pcs
Šiauliai Store
Available8 pcs
Central Warehouse (new location)

home deliveryDelivery in Lithuania 1-2 b.d.

Shipping parcelDelivery to pickup location 1-2 b.d.


Delivery terms

lemona shop

Pickup In Store

Pickup In Store For free

Orders are processed and shipped on weekdays from 8:00 a.m. to 5:00 p.m. When your order is ready for collection, we will inform you by SMS and e-mail.

Quantity in shop

Available2 pcs
Vilnius Žirmūnai Store
Available1 pcs
Vilnius Naujamiestis Store
Available2 pcs
Kaunas Store
Available2 pcs
Klaipėda Store
Available2 pcs
Šiauliai Store
Available8 pcs
Central Warehouse (new location)
Lemona terminal

Naujiena! LEMONA electronics paštomatai, veikiantys 24/7

Naujiena! LEMONA electronics paštomatai, veikiantys 24/7Free

Orders are processed on weekdays from 8:00 AM to 5:00 PM. Once your order is ready for pickup, we will notify you via text message and email. You will find the parcel terminal next to the store.
home delivery

Home delivery in Lithuania

Home delivery in Lithuania

After handing over the goods to the courier, we will inform you by e-mail. If you are ordering outside of Lithuania please use www.lemona-electronics.eu to order.

Over €70.00

(Orders up to 1000 kgs)

For free

To €70.00

(Orders up to 3 kgs)

3,49 €

To €70.00

(Orders up to 1000 kgs)

3,49 - 4,99 €

Shipping parcel

Delivery to a DPD Pickup location

Delivery to a DPD Pickup location

After handing over the goods to the courier, we will inform you by e-mail. Orders over €50.00 are delivered free of charge.

2,39 €

Product description

SONOFF

Open Compatibility
Supports Home Assistant (ZHA), Zigbee2MQTT, openHAB, ioBroker, Domoticz, Jeedom, and HomeSeer platforms.

Local and Fast Control
Control lights, switches, and sensors across different brands with no cloud latency – all operations are handled locally.

Flexible Firmware
Flash Zigbee NCP / Router, OpenThread RCP, or MultiPAN firmware and switch device roles whenever needed.

Extended Range
External antenna with up to ≤180° rotation strengthens the Zigbee mesh even in complex home layouts.

Easy Setup
Automatic detection in Home Assistant and fast device pairing in both ZHA and Zigbee2MQTT environments.

Typical Usage

Designed to build a robust Zigbee mesh for the entire home – lighting, climate sensors, sockets, or security accessories. Can be used as a coordinator to pair devices or reflashed as a router to extend network coverage.

Quick Start

Home Assistant (ZHA):
Add integration → ZHA → follow the instructions; pair devices via ZHA > Devices.

Zigbee2MQTT:
Install an MQTT broker and Zigbee2MQTT, set the adapter to “ember” and select the correct serial port, then start pairing.

Technical Specifications

Model: SONOFF Dongle-LMG21 (Dongle Lite MG21)
Zigbee SoC: EFR32MG21
Interface / OS: USB; Windows, Ubuntu, Raspberry Pi OS / Raspbian, Docker
Firmware: Zigbee NCP, Zigbee Router, OpenThread RCP, MultiPAN RCP, Custom
Input: 5 V ⎓ 500 mA
Housing: PC + ABS; external antenna (rotation up to ≤180°)
Dimensions: 133 × 18.6 × 10.1 mm
Operating conditions: 10–60 °C; 5–95 % RH
Compatibility: Zigbee 3.0 devices (lights, switches, sensors) from leading brands


Specifications

SKU
459581
Weight
0.043 kg.
Barcodes
6920075743456
Warranty period (months)
24
Brand
Product code
SONOFF-LMG21
Communication protocol
ZigBee
Description generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligenceDescription generated by artificial intelligence

Product description generated by artificial intelligence

SONOFF Smart Home ZigBee Dongle Lite MG21 USB MQTT

Elevate your smart home experience with the SONOFF Smart home ZigBee dongle Lite MG21 USB MQTT. This compact and powerful device acts as the central hub for your SONOFF smart home system, enabling seamless communication between your ZigBee devices.

Key Features and Functions:

  • ZigBee Connectivity: Effortlessly connect and manage a wide range of ZigBee-enabled smart devices, creating a robust and responsive smart home network.
  • MQTT Support: Leverage the power of MQTT protocol for efficient and lightweight messaging, ideal for integrating with various smart home platforms and custom setups.
  • USB Interface: Simple plug-and-play functionality via a standard USB port, making setup and integration straightforward.
  • Centralized Control: Acts as the brain of your ZigBee network, allowing you to control multiple devices from a single point.
  • Wide Compatibility: Designed to work harmoniously within the SONOFF ecosystem and compatible with other ZigBee devices.

Why Choose the SONOFF ZigBee Dongle Lite?

The SONOFF ZigBee USB adapter is the perfect choice for anyone looking to build or expand their smart home. Its ease of use, combined with the reliability of ZigBee technology and the flexibility of MQTT, makes it an indispensable component for creating a truly connected living space.

Benefits:

  • Simplified Automation: Automate routines and scenes involving multiple ZigBee devices.
  • Enhanced Reliability: ZigBee mesh networking ensures stable and consistent communication.
  • Future-Proofing: Invest in a scalable solution that grows with your smart home needs.
  • Cost-Effective: A budget-friendly way to unlock the full potential of your smart devices.

Integrate your smart lights, sensors, switches, and more with the SONOFF MG21 USB MQTT gateway and experience the convenience of a truly intelligent home.


This description is generated using artificial intelligence (AI) and may differ from the actual product. Common AI errors may include:

  • Inaccurate product features: some technical specifications, colors, sizes or other parameters may be inaccurate or omitted.
  • Incorrect compatibility information: AI may provide incorrect information about the compatibility of products with other devices or systems.
  • Overly Optimistic Functions: in some cases functions may be provided whose product iš doesnt really have.
  • Name or Model Discrepancies: AI may misrepresent the product name or model.

If you notice inconsistencies or have questions about the description, please contact us before purchasing the product, please contact us by e-mail to you: [email protected].