SONOFF Dongle Max (Dongle-M) – A PoE-based Zigbee/Thread gateway with ESP32 and MG24 chips

As expected, SONOFF has now launched the Dongle Max (also known as Dongle-M) Zigbee coordinator and Thread Border Router with Ethernet, WiFi, and USB connectivity.

The company also highlights PoE or USB power supply options, web console access, and support for advanced features such as Webhooks, MQTT, WireGuard VPN, and Turbo mode.

SONOFF Dongle Max

SONOFF Dongle Max specifications:

  • Wireless SoCs
    • Silicon Labs EFR32MG24
      • MCU core – Arm Cortex-M33 MCU @ 78 MHz
      • Memory – 256 KB RAM (300% more RAM than ZBDongle-E)
      • Storage – 1536 KB flash (twice the flash of ZBDongle-E)
      • Radios/Protocols – 802.15.4, Matter, OpenThread, Zigbee 3.0, BLE, Bluetooth Mesh, Proprietary 2.4 GHz, Multiprotocol
    • Espressif Systems ESP32-D0WDR2-V3
      • MCU cores – Dual-core Xtensa LX6 32-bit microprocessor up to 240 MHz
      • Memory – 520 KB SRAM + 2 MB embedded PSRAM
      • Wireless – 2.4 GHz 802.11 b/g/n WiFi 4 and Bluetooth: v4.2 + EDR
  • Storage – 16MB flash for ESP32
  • Wired networking – Ethernet RJ45 port with PoE support
  • USB – 1x USB Type-C port
  • Misc – Two antennas for WiFi and Zigbee
  • Power Supply
    • 5V/1A via USB Type-C port OR
    • 48V/0.25A for PoE port
  • Dimensions – TBD
  • Temperature Range – -10°C to +60°C

SONOFF Dongle Max mounting options

SONOFF Dongle M unboxing
Package content

The Dongle Max ships with a mounting bracket, double-sided tape, screw packages, two SMA antennas, a one-meter USB Type-C cable, and a Quick Guide. The features are somewhat similar ot the SMLIGHT SLZB-06M Zigbee 3.0 PoE adapter but with more recent chips, although I can see SMLIGHT has an updated model with the MG24 SoC.

The main advantages of the Dongle Max compared to the just-released Dongle Plus MG24 are the addition of WiFi and Ethernet connectivity besides just USB, PoE support, and a web console for easy configuration.

Dongle-M Web Dashboard
Dongle-M Web Dashboard

It still ships with EmberZnet (EZSP) Zigbee Coordinator firmware by default, but also supports Zigbee Router, Thread RCP, and MultiPAN (Experimental) firmware. It’s designed for integration with Home Assistant, Zigbee2MQTT, IoBroker, and OpenHab. You’ll find more details and instructions to get started on the documentation website.

Having said that, it has been pointed out to me that it is not recommended to use a Zigbee Coordinator via a Serial-to-IP bridge over WiFi or VPN due to reliability and stability issues, as highlighted on the Zigbee2MQTT and Home Assistant websites. So Ethernet is recommended in that case. As I understand it, Thread is not impacted by this issue.

Dongle Max vs Dongle Plus MG24 vs ZBDongle E vs ZBDongle P
SONOFF Zigbee dongles comparison

The Dongle Max PoE-enabled Zigbee/Thread dongle is sold for $42.90 on the SONOFF store. As usual, you can get a 10% discount on any item there when using the coupon code cnxsoft. Paisit got a sample of the Dongle-M, so we should expect a review with Home Assistant in the next few weeks.

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14 Comments
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Hedda
Hedda
1 year ago

You might want to change the title and text as according to Zigbee terminology this is still only a ”Zigbee Coordinator” and not a ”Zigbee Gateway”, because according to Zigbee terminology ”Zigbee Gateway” is the software application running higher in the stack on the host that handles ZCL (Zigbee Cluster Library) and ZDO (Zigbee Device Object) application state management and more. I guess that techically this product is a Serial-over-IP bridge or a UART serial tunnel proxy server since what is basically does is allow you to remotly connect to the Silicon Labs SoC chips serial UART port over a… Read more »

SixSixSevenSeven
1 year ago

It doesn’t have dual band WiFi, it’s single band, you’ve even shown this in the article so I don’t know why it’s in the title.

Also ZigBee coordinators aren’t recommended over ethernet either, it’s not just WiFi to be avoided

John
John
1 year ago

Who doesn’t recommend it?

DirtyDiet
DirtyDiet
1 year ago

Why to avoid? Can you please provider sources. Thx

Jacques
1 year ago

The mention of MQTT in the features made be hope that you could use MQTT to control Zigbee devices directly (i.e. that the functionality of Zigbee2MQTT was somehow integrated into the device), but apparently the MQTT features are there only to control the gateway itself.

Does anyone know if there are any efforts to have Zigbee2MQTT-equivalent functionality run on an ESP32? If you want to run many such devices the current solution (with many Z2M instances each connected to one gateway using serial over IP, initiated from Z2M) is quite clumsy IMHO.

Rye
Rye
1 year ago

Tasmota can run on an ESP32 and act as a Zigbee to MQTT gateway. It worked well for me on a Sonoff Zigbee Bridge Pro.

Hedda
Hedda
1 year ago

@Jacques Tasmota has a variant branch called Zigbee2Tasmota that can run a Zigbee Gateway to MQTT bridge locally on an ESP32 in combination with a Silicon Labs or Texas Instruments radio MCU, but it is very limited in scope and not user-friendly so use cases for it is very niche, like a remote location with just a few Zigbee sensors, see -> https://tasmota.github.io/docs/Zigbee/

Jacques
1 year ago

Great, thanks!

Yousaf Saleem
1 year ago

You can check Smlight SMHUB for that.

Terry Hardie
Terry Hardie
1 year ago

They won’t ship to the USA

Jacques
1 year ago

Many sites have suspended shipping to the US, mostly because dozens of national postal services have done the same because of the tariff situation (mostly the removal of the de minimis exemption).

Jacques
1 year ago

My understanding is that the real issue is that along with the end of the minimis exemption, they added additional requirements for info to provide, but haven’t given the specifics of what info and/or how to provide it or something like that (there are actually exemptions, but with different reasons than just the amount).

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