examples/lighting-app/bouffalolab/README.md

# `Bouffalo Lab`

This example functions as a light bulb device type, with on/off and level
capabilities and uses a test Vendor ID (VID) and a Product ID (PID)
of **0x8005**.

Current supported boards:

-   `BL602DK`
-   `BL706DK`
-   `BL704LDK`

Legacy supported boards:

-   `BL602-IoT-Matter-V1`, [here](https://www.amazon.com/dp/B0B9ZVGXD8) to
    purchase.
-   `BL602-NIGHT-LIGHT`
-   `XT-ZB6-DevKit`
-   `BL706-NIGHT-LIGHT`
-   `BL706DK`
-   `BL704LDK`

> Warning: Changing the VID/PID may cause compilation problems, we recommend
> leaving it as the default while using this example.

## BL602

BL602/BL604 is combo chip-set for Wi-Fi 802.11b/g/n and BLE 5.0 base-band/MAC.

## BL70x

BL70x is combo chip-set for BLE and IEEE 802.15.4/ZigBee/Thread.

-   BL702/BL706 has 14dbm tx power and is recommended for routing devices. SDK
    uses BL702 as a general name.
-   BL702L/BL704L is designed for low power application. SDK uses BL702L as a
    general name.

BL70x has fully certified with all Thread 1.3 features, included Thread `SSED`
and Thread Border Router.

## Solutions introduction

`Bouffalo Lab` has full connectives support for Matter Applications.

-   Wi-Fi 4/6 application, we have
    -   BL602, Wi-Fi 4 application.
    -   BL706 + BL602, Wi-Fi 4 application. BL602 runs as a normal WLAN
        transceiver; TCP/IP stack runs as BL706 side. We recommend this solution
        is for Openthread Border Router application and Matter ZigBee bridge.
        -   Openthread Border Router application, please refer to Openthread
            Border Router application
        -   Matter ZigBee Bridge application, please contact `Bouffalo Lab` for
            support.
-   Thread application, we have
    -   B70X
-   Ethernet application, we have
    -   BL706. It supports single Matter application, and also Openthread Border
        Router application and Matter ZigBee bridge
        -   Openthread Border Router application, please refer to Openthread
            Border Router application
        -   Matter ZigBee application, please contact `Bouffalo Lab` for
            support.

## Initial setup

The following steps in this document were validated on Ubuntu 20.04.

-   Install dependencies as specified in the **connectedhomeip** repository:
    [Building Matter](https://github.com/project-chip/connectedhomeip/blob/master/docs/guides/BUILDING.md).

-   Clone and initialize the **connectedhomeip** repo

    ```
    git clone https://github.com/project-chip/connectedhomeip.git
    cd connectedhomeip
    git submodule update --init --recursive
    source ./scripts/activate.sh -p bouffalolab
    ```

-   Setup build environment for `Bouffalo Lab` SoC

    ```
    ./integrations/docker/images/stage-2/chip-build-bouffalolab/setup.sh
    ```

    Script `setpu.sh` requires to select install path, and please execute
    following command to export `BOUFFALOLAB_SDK_ROOT` before building.

    ```
    export BOUFFALOLAB_SDK_ROOT="Your install path"
    ```

## Build CHIP Lighting App example

The following steps take examples for `BL602DK`, `BL704LDK` and `BL706DK`.

-   Build lighting app with UART baudrate 2000000

    ```
    ./scripts/build/build_examples.py --target bouffalolab-bl602dk-light build
    ./scripts/build/build_examples.py --target bouffalolab-bl704ldk-light build
    ./scripts/build/build_examples.py --target bouffalolab-bl706dk-light build
    ```

-   Build lighting app with RPC enabled and UART baudrate 115200.

    ```
    ./scripts/build/build_examples.py --target bouffalolab-bl602dk-light-light-rpc-115200 build
    ./scripts/build/build_examples.py --target bouffalolab-bl704ldk-light-light-rpc-115200 build
    ./scripts/build/build_examples.py --target bouffalolab-bl706dk-light-light-rpc-115200 build
    ```

### Build options with build_examples.py

-   `-wifi`, to specify that connectivity Wi-Fi is enabled for Matter
    application.

    -   BL602 uses `-wifi` by default
    -   BL702 needs specify to use BL706 + BL602 for Wi-Fi connectivity.

-   `-thread`, to specify that connectivity Thread is enabled for Matter
    application.

    -   BL70X uses `-thread` by default.

-   `-ethernet`, to specify that connectivity Ethernet is enabled for Matte
    application.

    -   BL706 needs specify to use Ethernet connectivity.

-   `-easyflash`, to specify that `easyflash` is used for flash storage access.
-   `-mfd`, enable Matter factory data feature, which load factory data from
    `MFD` partition
-   `-shell`, enable command line
-   `-rpc`, enable Pigweed RPC feature
-   `-115200`, set UART baudrate to 115200 for log and command line
-   `-cdc`, enable USB CDC feature, only support for BL706, and can't work with
    Ethernet Board
-   `-resetCnt`, enable feature to do factory reset when continues power cycle
    is greater than 3
-   `-mot`, to specify to use openthread stack under
    `third_party/openthread/repo`
    -   Without `-mot` specified, Matter Thread will use openthread stack under
        `Bouffalo Lab` SDK
-   `-fp`, to specify to enable frame pointer feature to print call stack when
    hit an exception for debug purpose.

## Download image

-   Using script `*.flash.py`.

    After building gets done, python script `*.flash.py` will generate under
    build output folder, such as

    -   `chip-bl602-lighting-example.flash.py` for BL602
    -   `chip-bl702-lighting-example.flash.py` for BL702
    -   `chip-bl702l-lighting-example.flash.py` for BL702L

    Download operation steps as below, please check `help` option of script for
    more detail.

    -   Connect the board to your build machine

    -   Put the board to the download mode:

        -   Press and hold the **BOOT** button.
        -   Click the **RESET** or **EN** button.
        -   Release the **BOOT** button.

    -   Type following command for image download. Please set serial port
        accordingly, here we use /dev/ttyACM0 as a serial port example.

        -   `BL602DK`, `BL704LDK` and `BL706DK`.


            ```shell
            ./out/bouffalolab-bl602dk-light/chip-bl602-lighting-example.flash.py --port /dev/ttyACM0
            ./out/bouffalolab-bl704ldk-light/chip-bl702l-lighting-example.flash.py --port /dev/ttyACM0
            ./out/bouffalolab-bl706dk-light/chip-bl702-lighting-example.flash.py --port /dev/ttyACM0
            ```

        -   To wipe out flash and download image, please append `--erase`
            option. Take BL602DK as example.

            ```shell
            ./out/bouffalolab-bl602dk-light/chip-bl602-lighting-example.flash.py --port /dev/ttyACM0 --erase
            ```

            > Note, better to append --erase option to download image for BL602
            > develop board at first time.

## Run the example

-   You can open the serial console. For example, if the device is at
    `/dev/ttyACM0` with UART baudrate 2000000 built:

        ```shell
        picocom -b 2000000 /dev/ttyACM0
        ```

-   To reset the board, Click the **RESET** or **EN** button.

-   To toggle the light bulb’s on/off state by clicking BOOT button, which also
    toggles the LED.

-   To do factory reset, press BOOT button over 4 seconds, release BOOT button
    after led blink stopped.

## Test Commission and Control with chip-tool

Please follow [chip_tool_guide](../../../docs/guides/chip_tool_guide.md) and
[guide](../../chip-tool/README.md) to build and use chip-tool for test.

### Prerequisite for Thread Protocol

Thread wireless protocol runs on BL706, which needs a Thread border router to
connect Thread network to Wi-Fi/Ethernet network. Please follow this
[guide](../../../docs/guides/openthread_border_router_pi.md) to setup a
raspberry Pi border router.

After Thread border router setup, please type following command on Thread border
router to get Thread network credential.

```shell
sudo ot-ctl dataset active -x
```

### Commissioning over BLE

-   Reset the board or factory reset the board

-   Enter build out folder of chip-tool and running the following command to do
    BLE commission

    -   Wi-Fi

        ```shell
        ./chip-tool pairing ble-wifi <node_id> <wifi_ssid> <wifi_passwd> 20202021 3840
        ```

    -   Thread

        ```shell
        ./chip-tool pairing ble-thread <node_id> hex:<thread_operational_dataset> 20202021 3840
        ```

    > `<node_id>`, which is node ID assigned to device within chip-tool
    > fabric<br> `<wifi_ssid>`, Wi-Fi network SSID<br> `<wifi_passwd>`, Wi-FI
    > network password<br> `<thread_operational_dataset>`, Thread network
    > credential which running `sudo ot-ctl dataset active -x` command on border
    > router to get.

### Cluster control

After successful commissioning, cluster commands available to control the board.

-   OnOff cluster

    The following command shows to toggle the LED on the board

    ```
    $ ./chip-tool onoff toggle <node_id> 1
    ```

-   Level cluster

    The following command shows to move level to 128.

    ```
    $ ./chip-tool levelcontrol move-to-level 128 10 0 0 <node_id> 1
    ```

-   Color cluster

    The following command shows to change hue and saturation to 240 and 100

    ```
    $ ./chip-tool colorcontrol move-to-hue-and-saturation 240 100 0 0 0 <node_id> 1
    ```

-   Identify Light

    The following command shows to identify the board 10 seconds

    ```shell
    ./chip-tool identify identify 10 <node_id> 1
    ```

## Test OTA software upgrade with ota-provider-app

Please take [guide](../../ota-provider-app/linux/README.md) for more detail on
ota-provider-app build and usage.

### Create the Matter OTA image

`Bouffalo Lab` Matter OTA image contains two parts:

-   `Bouffalo Lab` OTA bootable image:
    -   Add boot parameters, signature/encryption if specified
    -   And specify whether image has be compressed.
-   Add Matter recognition header by
    [ota_image_tool.py](../../../docs/guides/openthread_border_router_pi.md).

Script `*.flash.py` builds `Bouffalo Lab` bootable image and call
[ota_image_tool.py](../../../docs/guides/openthread_border_router_pi.md) to add
Matter recognition header. Take `BL602DK` as example.

```shell
./out/bouffalolab-bl602dk-light/chip-bl602-lighting-example.flash.py --build-ota --vendor-id <vendor id> --product-id <product id> --version <version> --version-str <version string> --digest-algorithm <digest algorithm>
```

> lighting-app.ota should have greater software version which is defined by
> macro `CHIP_DEVICE_CONFIG_DEVICE_SOFTWARE_VERSION` in CHIPProjectConfig.h

### Start ota-provider-app

-   Start ota-provider-app for lighting-app.ota

    ```shell
    $ rm -r /tmp/chip_*
    $ ./chip-ota-provider-app -f <path_to_ota_bin>/lighting-app.ota
    ```

    where `<path_to_ota_bin>` is the folder for lighting-app.ota.

-   Provision ota-provider-app with assigned node id to 1
    ```shell
    $ ./chip-tool pairing onnetwork 1 20202021
    $ ./chip-tool accesscontrol write acl '[{"fabricIndex": 1, "privilege": 5, "authMode": 2, "subjects": [112233], "targets": null}, {"fabricIndex": 1, "privilege": 3, "authMode": 2, "subjects": null, "targets": null}]' 1 0
    ```

### Start ota software upgrade

-   BLE commission BL602/BL702 lighting if not commissioned.
-   Start OTA software upgrade process
    ```shell
    ./chip-tool otasoftwareupdaterequestor announce-otaprovider 1 0 0 0 <node_id_to_lighting_app> 0
    ```
    where `<node_id_to_lighting_app>` is node id of BL602/BL702 lighting app.
-   After OTA software upgrade gets done, BL602/BL702 will get reboot
    automatically.

## Run RPC Console

-   Build chip-console following this
    [guide](../../common/pigweed/rpc_console/README.md)

-   Start the console

    ```
    $ chip-console --device /dev/ttyUSB0 -b 2000000
    ```

-   Get or Set the light state

    `rpcs.chip.rpc.Lighting.Get()`

    `rpcs.chip.rpc.Lighting.Set(on=True, level=128)`