SLZB-MR1 availability notice!

After the flash sales of the initial batch, the SLZB-MR1 is temporarily out of stock. Expected availability is mid-May. We apologize for any inconvenience caused. As of April 26, 2025, a small stock is still available [here-CH] and open pre-orders [here-INT].

✅ SLZB-MR1 Intro

The SLZB-MR1 is SMLIGHT’s new advanced coordinator 🚀, combining CC2652P7 and EFR32MG21 chips in a single device to deliver full support for both Zigbee and Thread networks 📶. Designed to work seamlessly with Zigbee2MQTT and ZHA, the SLZB-MR1 offers unmatched flexibility for your smart home setup.

Whether you’re building a pure Zigbee network, experimenting with Matter over Thread, or want the freedom to switch between ecosystems 🔄, this multiradio coordinator brings it all together – in one powerful solution 💪📡.

✅ Where the SLZB-MR1 Design Came From

Zigbee and Thread – alongside other popular smart home and IoT protocols such as Z-Wave, Wi-Fi, and Bluetooth – are widely used in modern ecosystems. Many users build their smart environments using a combination of these protocols. However, managing such a diverse setup often requires multiple dedicated devices: for example, a Zigbee coordinator for Zigbee networks and a Thread Border Router for Thread 📡.

While some commercial solutions support both Zigbee and Thread simultaneously, they are typically locked into specific vendors or ecosystems 🔒 (a lot of such hubs with Zigbee + Thread are available on the market). This vendor lock-in, despite showcasing the technical feasibility of coexisting Zigbee and Thread radios in the same hardware device, limits flexibility and user choice 🚫.

With the SLZB-MRx series, we set out to change that. Our goal was to empower smart home enthusiasts and developers👨‍💻 with a multiradio device that enables native, vendor-agnostic access to both Zigbee and Thread protocols. “MR” stands for MultiRadio – this series allows users to freely choose their preferred ecosystem and integration path, leveraging the full capabilities of open-source smart home software and platforms.

✅ Zigbee & Thread Co-Existance – And They Already Do!

Remark for running several 2.4 GHz networks on the same device.

It’s completely valid to run Zigbee and Thread radios in the same device – and several commercial smart home hubs already prove this:🔹Aqаra Hub M3, 🔹Hоmеy Pro, 🔹Mоеs Tuya Zіgbee & Thrеаd Hub, etc.

These devices combine multiple protocols (Zigbee, Thread, Wi-Fi, Bluetooth) into one enclosure (on multiple SoCs).

💡 With proper set-up (use different channels for each network Zigbee and Thread), stable operation of both radios works reliable.

Bottom line: Multiradio is the future, and it’s already here. In addition to existing solutions, SLZB-MR1 just made it flexible and easy to use.

Technical Specifications – SLZB-MR1

Radio Chips:

  • Texas Instruments CC2652P7
    • Zigbee 3.0 support (Zigbee2MQTT & ZHA compatible).
    • Thread (Matter-over-Thread) support (Open Thread Border Router) .
    • Ideal for Zigbee networks, works perfect also with Thread networks.
    • +20 dBm TX power with built-in PA.
    • 144kB+8kB RAM, 704kB Flash.
  • Silicon Labs EFR32MG21
    • Zigbee 3.0 support (Zigbee2MQTT & ZHA compatible).
    • Thread (Matter-over-Thread) support (Open Thread Border Router).
    • Ideal for Thread networks, works perfect also with Zigbee networks.
    • +20 dBm TX power.
    • 96 KB RAM, 1024 KB Flash.

 

Supported Protocols:

    • Zigbee 3.0 (Zigbee2MQTT, ZHA), at the same time with Thread.
    • Thread (Matter-over-Thread), at the same time with Zigbee.
    • Supports simultaneous or switchable operation for multiradio environments.
    • Wi-Fi.

 

Connectivity:

  • USB-C for data and power
  • Ethernet connection

 

Firmware:

  • Radio firmware support
      • Compatible with TI Z-Stack (for CC2652P7)
      • Compatible with SL Ember/EZSP stack (for EFR32MG21).
  • Radio firmware Updating via web-interface
  • SLZB-OS
  • Compatible with SLZB-OS versions 2.6.8dev26, 2.8.3 and up (no inbetween 2.6.8 and 2.8.3).
  • SLZB-OS supported functionality:
      • VPN, 20+ languages, Scripts support, Network settings, Security, Dashboard, zHub mode, mode switcher, OTA firmware updates etc.

Antenna:

  • Dual external antenna SMA female connectors (one for each radio SoC)
  • PCB antenna for Wi-Fi and Bluetooth.
  • 2x pre-packed high-gain 2.4 GHz antennas included

 

Power Supply:

  • PoE powered, POE 48V supported
  • Powered via USB-C (5V DC)
  • Low power consumption up to 1.5W (if both radio SoCs are running)

Enclosure:

  • Compact, durable ABS case with ventilation
  • DIN rail and wall-mount compatible (3D models)
  • Easy sticking with two-sided adhesive tapes
  • Easy mounting with screws with screw set (screws, screw driver, ruler) included.

 

LED Indicators and peripheral:

  • Independent status LEDs for each radio (6 service LEDs in total: 2 LEDs for Core SoC, 2 LEDs for CC2652P SoC, 2 LEDs for EFR32 SoC,)
  • Multibutton: supports many functions (mode switch, reset etc).

FUNCTIONS

CC2652P + EFR32 

Zigbee & Thread are based on the powerful chips CC2652P7 and EFR32 from TI and SL, reliability confirmed by thousands of users

LAN or USB

 

Use SLZB-MR1 as Zigbee 3.0 to LAN, WiFi or USB. Forget about separate devices. Change mode online or via button


PoE power

You can power your SLZB-MR1 device either through PoE or Type-C. PoE 802.5af standard is supported

+20dB +5dB

Zigbee 3.0 SLZB-MR1 adapter has +20dB amplifier on board & +5dB antenna. Cover your farthest locations

FIRMWARE

PRE-FLASHED 

Just plug-and-play. You will get your SLZB-MR1 pre-flashed and ready to use

Coordinator or Router

Supports both Zigbee 3.0 modes – Coordinator or Router. Just flash over the web interface appropriate firmware

ADJUSTABLE

Full control of your device. Need to change mode from LAN to USB? Just one click. Want to turn off Power LED? One click!i

SECURE

Control access to the Zigbee 3.0 SLZB-MR1 adapter’s settings through secure login and password

CHIPSETS AND TECHS


ESP32

Powerful ESP32 chip makes control over all the functions of the device

LAN8720

Reliable Ethernet SoC from Microchip takes care on stable Ethernet connection

CP2102

Best in class USB/UART SoC converter. Do not compromise on speed and quality

CC2652P + EFR32 

Zigbee & Thread are based on the powerful chips CC2652P7 and EFR32 from TI and SL, reliability confirmed by thousands of users

UPDATES

REMOTE ZIGBEE UPD

The only Zigbee coordinator with the option to update Zigbee chip over web-interface just with one click!



REMOTE ESP32 UPD

ESP firmware could be updated distantly. Full control wherever you are!

ESP32 Autoboot

SLZB-MR1 features auto boot mode for ESP32. If you want to flash over USB – just plug-and-do!

DIY PINOUTS

SLZB-MR1 is a DIY enthusiasts friendly: it contains pinouts for both ESP32 and CC2652P chips

USER FRIENDLY

EASY TO PLACE

Want to install it on the wall or under the table? Use doulbe sided adhesive tape or screws, SLZB-MR1 fits both!


NEWBY? MANUAL!

Do not know how to start? No worries, exhaustive manual is included!

POWERFUL ANTENNA

Need co cover with Zigbee network big area? No worries, powerful antenna is included!

TINY DESIGN

Now you can put your adapter wherever you want! SLZB-MR1 is a small and tiny!

OTHER

6X LEDS

Do you like responses from your devices with LED? SLZB-MR1 has 6 LEDs for intercation with the users!



BUTTON

Control device mode and other functions through physical button.

ROTATABLE ANTENNA

Rotatable in 3 dimensions antenna secures best positions for the best signal

MADE IN UKRAINE

SLZB-MR1 designed, developed and tested in Ukraine. Ukrainian quality guaranteed.

SMLIGHT SLZB-MR1 FREQUENTY ASKED QUESTIONS (FAQ)

Does SLZB-MR1 works with Home Assistant out of the box?

Yes, it does. Just plug in SLZB-MR1 into your LAN Ethernet or USB, and that is it. SLZB-MR1 is pre-flashed and ready to use.

Can I set up multiple SLZB-MR1 coodinators with one Home Assistant?

Yes, you can. You can set up as many SLZB-MR1 coordinators as you want with one Home Assistant. For that, you just need to run a separate instance of Zigbee2MQTT for each coordinator. We have now received feedback from our lovely Customers about using 6 items with one Home Assistant. Please also note that you can connect to devices that are outside your LAN network, e.g., somewhere in another location with access to the internet. More details can be found in this Article of the official manual.

Overall system architecture with multiple adapters looks like this:

How to select mode USB/Ethernet? Any physical switches?

The device can be switched between USB or Ethernet either through a web-interface or by button. Just short press – and the work mode changed. Switching by web interface allows changing the work mode distantly. 

Do I need to change powering either from POE or USB? Any switch?

Oh no. You do not need to think about tit. No switches. Just plug in POE or type-C or both – and the device works. It distinguishes power sources and acts correspondingly. 

Can I update firmware distantly, without physical access to the SLZB-MR1?

Yes, you can. Both main chips used in SLZB-MR1 (CC2652P, EFR32 and ESP32) can be updated distantly from the other global point. That makes the device suitable for installation in rare-visited locations or installation places.

Does it supports POE powering?

Yes, it does. The device support POE standard IEEE 802.3af. That is the “basic” POE widely used standard. Just plug and use; you do not need any other additional power cables and plugs. 

What is ESP32 Autoboot?

That is for “Pro” users who want to flash SLZB-MR1 with the type-C connection. ESP32 Autoboot means that the device contains a built-in programmer and schematic that allows flashing ESP32 without any additional activities: you do not need to press buttons to make ESP32 in flash mode, and you do not need to plug in additional programmers. The only thing you need – just to plug in type-C and start flashing. Easy.

Can I connect to type-C and RJ45 at the same time? Optoelectronic isolation at place?

Yes. The device contains optoelectronic isolation between USB and Ethernet parts. So you can plug in SLZB-MR1 to both RJ45 and type-C at the same time.

When close to ear, I hear little noise from the PoE transformer. Is it Ok?

The enclosure of the device contains vent holes, and when close to the ears, you can hear little noise from the POE transformer. The normal is if you can’t hear it more than 50 centimeters from the device.