Zigbee 3.0 USB Dongle Based on Silicon Labs EFR32MG21 Universal Zigbee Gateway ZB-GW04 USB Dongle Support via ZHA Zigbee2MQTT Connect Zigbee Device

Notice:

This ZigBee 3.0 usb dongle already with ZigBee2MQTT software pre flashed.

Feature:

It comes pre-flashed with an unsigned EmberZNet 6.7.9 Zigbee NCP application firmware with Silabs standard EZSP v8 (EmberZNet Serial Protocol version 8) interface enabled as well as the standard Silabs Gecko Bootloader firmware for recovery, meaning it can be used either as-is out-of-the-box or flashed with custom application firmware via USB.

Hardware is at its core based onSilicon Labs EFR32MG21 Series 2 Multiprotocol Wireless SoC(part numberEFR32MG21A020F768IM32) and aWCH CH340E USB to Serial/UART Bridge Controller. While it only has a PCB circuit board antenna the radio has an integrated +20 dBm Power Amplifier (output power) and -104.5 dBm Receive Sensitivity which should be made for a very good Zigbee coordinator or Zigbee router if both hardware and firmware were properly implemented.

TheElelabs EZSP Firmware Upgrade Utility(https://github.com/Elelabs/elelabs-zigbee-ezsp-utility/) orwalthowd firmware update Docker image(https://github.com/walthowd/husbzb-firmware) can be used to flash the firmware to a newer or older version. New and old firmware official images are currently being provided at github (https://github.com/xsp1989/zigbeeFirmware/tree/master/firmware/Zigbee3.0_Dongle)

If the device is following Zigbee standards it is possible it will work with other gateway solutions, it is just not confirmed as working yet!

Specification:

Product model: ZB-GW04 USB dongle
Pre-flashed with EZSP v8 (EmberZNet Serial Protocol version 8)
Can use ZHA in Home Assistant or Zigbee2MQTT (pre-alpha)
Base on EFR32MG21+CH340E
+20dBm output gain，PCB antenna
Plastic Shell
Support OTA Via Uart (Press the BOOT button,then press and release the nRST button, finally release the BOOT button)
Baud rate: 115200