Since I bought the first device that needs a Thread Border Router to connect to my Home Assistant, I purchased the Espressif ESP32-H2 module (https://openthread.io/guides/images/otbr-esp-br-board.jpg?hl=it).
The device is an Aqara Door Lock U200 and it can be integrated with Matter.
I started following this guide: Router di confine Thread ESP | OpenThread
Now the TBR connects automatically to Wi-Fi and seems to be working.
I installed the Thread, Open Thread Border Router, and Matter integrations in HA.
Inside Thread, I see the Border Router with a phone icon and a key.
When I try to add a Matter device, the Aqara device is detected but it tells me that a Border Router is required! And I’m stuck here.
Could someone help me? Thanks.
I also use a ESP32-H2 as a OTBR radio coprocessor, so it should work if all the prerequisites are in place. Review the Thread HA docs and you might find the step you missed. One commonly missed step, for example, is syncing the TBR credentials dataset from HA to your phone app as mentioned in the Matter Troubleshooting section.
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This usually happens when a device is being commissioned by a mobile device but is either unsuccessful joining the Thread network (because mobile device doesn’t have the Thread credentials (yes follow Peter’s suggestion)), or the mobile device is connected to an LAN/WiFi segment that differs from the one the TBR is connected to (i.e. mDNS (IPv6) advertisements coming out of the TBR for that device are going out one network, but the mobile device is not getting them because its on another network.
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You guy saved my life!
This step of the matter troubleshooting section here: " * In the Companion app, go to Settings > Companion app > Troubleshooting, then select Sync Thread credentials." solved, after attempt to re adding a matter device everything works, and yes, it is mandatory to stay on same wifi network (device, companion app and mobile phone). thank you.
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