A prototype application that demonstrates OpenThread Border Router on ESP32-S3 + ESP32-H2 Thread Border Router DevKit Board.
Please setup ESP-IDF and CHIP Environment and refer building and commissioning guides to get started.
The ESP Thread border router board provides an integrated module of an ESP32-S3 and an ESP32-H2.
We need to build an OpenThread RCP(Radio Co-Processor) firmware for ESP32-H2 of the Border Router Board before building this Thread Border example.
cd $IDF_PATH/examples/openthread/ot_rcp idf.py set-target esp32h2 idf.py build
Then we need to connect the USB2 port(ESP32-S3) of the Border Router Board to your host machine. Build and flash this example.
cd ${CHIP_ROOT}/examples/thread-br-app/esp32
idf.py set-target esp32s3
idf.py build
idf.py -p {port} erase-flash flash monitor
This example will detect the RCP firmware built in ESP-IDF path and flash it to the spiffs partition. When starting this example, the ESP32-S3 will compare the versions of both the RCP firmware in the spiffs partition and the firmware on ESP32-H2. if the spiffs RCP firmware is newer than the firmware on ESP32-H2, the Thread BR will flash the RCP firmware to ESP32-H2 automatically.
After you build this example and flash it to the ESP32-S3 of Border Router Board, you can access a standard OpenThread CLI via the device console with a matter otcli prefix.
For instance, you can get the state:
> matter otcli state Detached Done
You can send SetActiveDatasetRequest command to the Thread BR after commissioning it as a Matter-Over-Wi-Fi device to setup the Thread network or join an existing Thread network.
./chip-tool pairing ble-wifi 1 <ssid> <password> 20202021 3840 ./chip-tool generalcommissioning arm-fail-safe 180 1 1 0 ./chip-tool threadborderroutermanagement set-active-dataset-request hex:<dataset-tlvs> 1 1 1 ./chip-tool generalcommissioning commissioning-complete 1 0
The Thread BR with enable the Thread network interface and start Thread network after it receives SetActiveDatasetRequest command. And after the Thread BR sets up or join a Thread network, it will send the success response.
After setting up the Thread network, you can commission a Thread End-device to the Thread network.
./chip-tool pairing ble-wifi 2 hex:<dataset_tlvs> <pincode> <discriminator>