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Home Assistant SkyConnect USB Stick - compatible with Zigbee/Thread/Matter, ideal for Home Automation integration

Home Assistant SkyConnect USB stick is a physical radio adapter/dongle hardware which is designed to match Home Assistant Users perfectly. It is compatible with multi-protocol(Zigbee/Thread/Matter) and provides consistent Over-The-Wire (OTW) Firmware Update, allowing a beginner-friendly experience for Home Automation integration.

Out of stock


Note: AVAILABLE FOR PRE-ORDER, limited quantity is available. Shipment after official product launch, expected for November / December 2022.


Zigbee/Matter/Thread USB Stick for Home Assistant

The Home Assistant SkyConnect is designed to be a perfect match for Home Assistant Users. The device provides an easy connection with Zigbee and will support Matter specifications in the future with a firmware update from Home Assistant. The product supports Over-The-Wire (OTW) Firmware Update via the USB interface, which allows easy and quick firmware updates for both protocols. The device is an EFR32 Series 2 (Silicon Labs EZSP v8) adapter that will transmit at a power of +20 dBm. The drive supports full-speed USB 2.0 when plugged into the included USB extender.

The hardware is based on a Silicon Labs EFR32MG21 SoC with an IEEE 802.15.4 multi-protocol 2.4GHz radio MCU that is capable of concurrently running both Zigbee 3.0 (EmberZNet/EZSP) and Thread (OpenThread/Spinel inc. Matter/CHIP over Thread) stacks/protocols at the same time by using firmware in RCP RCP (Radio Co-Processor) mode. Direct local serial communication will be done via an onboard USB-to-UART bridge/converter (presumably a chip in Silicon Labs CP210x series).

Home Assistant will provide an Addon that will contact the Ember Stacks for Zigbee and Matter.Home Assistant will provide updates to the firmware on a consistent basis that will provide the best user experience from a Zigbee/Matter Adapter. The USB Stick will be Plug and Play, tightly integrated with the Zigbee Home Automation integration allowing for a beginner-friendly experience. For more information, please stay tuned for updates on Home Assistant website and our discord Home Assistant channel.


  • Perfect match for Home Assistant Users: easy connection with Zigbee and will support Matter specifications in the future with a firmware update from Home Assistant.
  • High performance, low power, and secure solutions: powered by EFR32MG21 Wireless SoC, 2.4GHz Multi-Protocol USB Transceiver, supports full-speed USB 2.0 when plugged into the included USB extender.
  • Reliable communications: transmits at a power of +20 dBm.
  • Runs 2 protocols simultaneously: dual-protocol operation(Zigbee, Matter).
  • Consistent Firmware Updates: Over-The-Wire (OTW) firmware update support.


The SkyConnect will not run Matter immediately on launch but using Home Assistant the firmware will be updated to enable Matter when the firmware is finished being developed. This is due to Matter not being released until November and not all of the information being available. Home Assistant is already working on their Matter implementation but more information will come after November.

What is Home Assistant?

Home Assistant is open-source home automation that prioritizes local control and privacy. Powered by a worldwide community of tinkerers and DIY enthusiasts, it is perfect to run on a Raspberry Pi, or Raspberry Pi Compute Module 4 powered Home Assistant Yellow, Seeed reTerminal, and mini router with dual gigabit ethernet, or a local server such as Seeed Odyssey Blue powered by Intel Celeron J4125. Home Assistant can be accessed via a web-based user interface, via companion apps for Android and iOS, or using voice commands via a supported virtual assistant like Google Assistant or Amazon Alexa. Home assistant enables the local control of smart home devices, offering better security, greater reliability, and more flexibility than many cloud-connected devices.


  • Home Assistant
  • Home Automation
  • Smart Home
  • Gateway

More Home Assistant projects working with Seeed hardware:



5V DC / up to 150mA


v2.0 full speed (12Mbps)


USB to UART, Silabs CP2102N


Silabs EFR32MG21





TX Power

up to +20dBm

RX sensitivity

-104dBm (250kbps)


Zigbee, Matter, Thread


EmberZNet Serial Protocol(EZSP)


Home Assistant SkyConnect USB stick 1


HSCODE 8517629900
USHSCODE 8517180050
EUHSCODE 8517180000




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