ITead (of Sonoff fame) has announced that will soon sell an inexpensive Zigbee 3.0 USB dongle based on Silicon Labs EFR32MG21 which is a very powerful MCU with an integrated +20 dBm radio amplifier: The largest change was between EZSP v4 (first added in EmberZNet 4.7.2 SDK) and EZSP v5 that was added in EmberZNet 5.9.0 SDK which requires the Legacy Frame ID 0xFF. The change from EZSP v5 to EZSP v6 was done in EmberZNet 6.0.0 SDK. The change from EZSP v6 to EZSP v7 was in EmberZNet 6.4.0 SDK. EmberZNet 6.7.0 SDK added EZSP v8 (and Secure EZSP Protocol Version 2).

https://translate.google.com/translate?hl=&sl=auto&tl=en&u=https%3A%2F%2Fgithub.com%2FCoolKit-Technologies%2FDevDocs%2Fblob%2Fmaster%2FZigbee%2FSM-011%E5%BA%94%E7%94%A8%E6%8C%87%E5%AF%BC%E4%B9%A6.md That will add USB identifiers for VID (Vendor ID)+ PID (Product ID) in combination with "Product Description ID" as unique identifier for it:Should be noted that a few manufacturer's devices (most notably a few Aqara/Xiaomi and Tuya devices) have badly written firmware that either prevents them from routing messages from other manufacturer's brands of devices or refuses to connect through a Zigbee Router that is not of the same manufacturer and/or brand. Info 2022-08-31 08:20:29MQTT publish: topic 'zigbee2mqttwin/0x00158d000894fa97', payload '{"battery":100,"device_temperature":25,"illuminance":187,"illuminance_lux":187,"linkquality":208,"power_outage_count":61,"voltage":3055}'

Also, from a chip perspective, I would like to be ready for Matter / Thread. The E version inspires more confidence in that regard, but I have nothing solid to prefer SI over TI. With the current goal from Home Assistant’s founders/members of streamlining experiences, I am hopeful that we will also get more and more GUI setting/configuration options in ZHA’s UI/frontend now that Nabu Casa has hired @puddly (tip is to follow puddly on GitHub) who is one of the developers of ZHA and zigpy to work full time on improving the native Zigbee experience. Please help improve/enhance all of the integration documentation after you tested the dongle and ZHA:Important: Ensure the 3 way switch on your main board is in AEM position as shown below. The BRD4166A doesn't have this switch. For this demo we are going to use the default configuration of the sample applications. Repeat the above steps to create the ot-rcp project for your other board. Build and Flash the projects