Run zigguart on Yellow

[agners]

My setup is Core 2026.7.0b2, at the time of writing no built-in easy mechanism to migrate from ZHA via EmberZNet firmware to ZHA via zigguart is available. With this steps I made it happen:

1. Create a Home Assistant backup (because!)
2. Create a ZHA backup (from the integration page, press that download button, because!)
3. Double check that the Yellow radio is used by ZHA (ZHA integration > Cog wheel > Network information must say /dev/ttyAMA1).
4. Disable ZHA integration (three dot menu, Disable)
5. Install the Silicon Labs Flasher app
6. Configure the Silicon Labs Flasher app: Enter /dev/ttyAMA1 as device, enable hardware flow control and configure the firmware URL of the latest OpenThread RCP firmware for the Yellow radio, at the time of writing v2026.02.23.
7. Start the Silicon Labs Flasher app and confirm the app log contains "Flashing completed successfully"
8. Install the Ziggurat Zigbee Server app from the zigpy addon repository: https://github.com/zigpy/addons
9. Configure the Ziggurat Zigbee Server: Set device to /dev/ttyAMA1
10. Start the Zigguart Zigbee Server app
11. Enable the ZHA integration. It will fail to initialize with "Incorrect firmware installed". Ignore it
12. Press the cog wheel to reconfigure ZHA
13. Select "Change the current adapter settings"
14. Choose "Enter manually"
15. Enter ws://3ccd9485-ziggurat:9999 and select Submit
16. As "Adapter type" select "Zigguart" select Submit
17. Leave the serial settings as suggested and select Submit again
18. Choose "Migrate automatically"
19. You should be greeted with "ZHA has successfully migrated from your old adapter to the new one. Give your Zigbee network a few minutes to stabilize."

All my ~30 Zigbee devices appear to work just fine with Zigguart 🎉 .

Congrats, you run a fully open source Zigbee stack!

[agners]

Memory usage. CPU is essentially idle all the time