![ARM Mbed-OS logo](https://raw.githubusercontent.com/ARMmbed/mbed-os/master/logo.png) # Matter Arm Mbed OS All Clusters Example Application The Arm Mbed OS All Clusters Example demonstrates device commissioning process and all available clusters control. You can use this example as a reference for creating your own application. The example is based on [Matter](https://github.com/project-chip/connectedhomeip) and Arm Mbed OS, and supports remote access and control of device over a WiFi network. The example behaves as a Matter accessory, in other words a device that can be paired into an existing Matter network and can be controlled by this network.
- [Overview](#overview) - [Bluetooth Low Energy advertising](#bluetooth-low-energy-advertising) - [Bluetooth Low Energy rendezvous](#bluetooth-low-energy-rendezvous) - [WiFi provisioning](#wifi-provisioning) - [Run application](#run-application) - [Environment setup](#environment-setup) - [Building](#building) - [Flashing](#flashing) - [Debugging](#debugging) - [Testing](#testing) - [Serial port terminal](#serial-port-terminal) - [CHIP Tools](#chip-tools) - [Supported devices](#supported-devices) - [Notes](#notes) - [Device UI](#device-ui) - [Notes](#notes-1)
## Overview The Matter device that runs the All Clusters application is controlled by the Matter controller device over WiFi. By default, the Matter device is disconnected, and it should be paired with Matter controller and get configuration from it. Actions required before establishing full communication are described below. ### Bluetooth Low Energy advertising To commission the device onto a Matter network, the device must be discoverable over BLE. The BLE advertising starts automatically after device boot-up. ### Bluetooth Low Energy rendezvous In Matter, the commissioning procedure (called rendezvous) is done over BLE between a Matter device and the Matter controller, where the controller has the commissioner role. To start the rendezvous, the controller must get the commissioning information from the Matter device. The data payload is encoded within a QR code, printed to the UART console. ### WiFi provisioning The last part of the rendezvous procedure, provisioning involves sending the network credentials from the Matter controller to the Matter device. As a result, device is able to join the network and communicate with other devices in the network. ## Run application ### Environment setup Before building the example, check out the Matter repository and sync submodules using the following command: $ git submodule update --init Building the example application requires the use of **ARM Mbed-OS** sources and the **arm-none-gnu-eabi** toolchain. The Cypress OpenOCD package is required for flashing purpose. Install the Cypress OpenOCD and set env var `OPENOCD_PATH` before calling the flashing script. ``` cd ~ wget https://github.com/Infineon/openocd/releases/download/release-v4.3.0/openocd-4.3.0.1746-linux.tar.gz tar xzvf openocd-4.3.0.1746-linux.tar.gz export OPENOCD_PATH=$HOME/openocd ``` Some additional packages may be needed, depending on selected build target and its requirements. > **The VSCode devcontainer has these components pre-installed. Using the VSCode > devcontainer is the recommended way to interact with Arm Mbed-OS port of the > Matter Project.** > > **Please read this [README.md](../../../VSCODE_DEVELOPMENT.md) for more > information about using VSCode in container.** To initialize the development environment, download all registered sub-modules and activate the environment: ``` $ source ./scripts/bootstrap.sh $ source ./scripts/activate.sh ``` If packages are already installed then you just need to activate the development environment: ``` $ source ./scripts/activate.sh ``` ### Building The All Clusters application can be built in the same way as any other Matter example ported to the mbed-os platform. - **by using generic vscode task**: ``` Command Palette (F1) => Run Task... => Run Mbed Application => build => all-clusters-app => (board name) => (build profile) => (build type) ``` - **by calling explicitly building script:** ``` ${MATTER_ROOT}/scripts/examples/mbed_example.sh -c=build -a=all-clusters-app -b= -p= -T= ``` Both approaches are limited to supported evaluation boards which are listed in [Supported devices](#supported-devices) paragraph. Mbed OS defines three building profiles: _develop, debug_ and _release_. For more details please visit [ARM Mbed OS build profiles](https://os.mbed.com/docs/mbed-os/latest/program-setup/build-profiles-and-rules.html). There are also three types of built application: _simple, boot_ and _upgrade_: - **simple** - standalone application, mainly for developing and testing purpose (all building profiles are supported) - **boot** - signed application + bootloader, it supports booting process and can be use for firmware update (only _release_ building profiles is supported) - **update** - signed application, application image can be used for firmware update (only _release_ building profiles is supported) When using the building script, it is possible expand the list of acceptable targets; this may be useful for rapid testing of a new mbed-targets. ### Flashing The All Clusters application can be flashed in the same way as any other Matter example ported to mbed-os platform. The [Open On-Chip Debugger](http://openocd.org/) is used to upload a binary image and reset the device. - **by using VSCode task**: ``` Command Palette (F1) => Run Task... -> Run Mbed Application => flash => all-clusters-app => (board name) => (build profile) ``` - **by calling explicitly building script:** ``` ${MATTER_ROOT}/scripts/examples/mbed_example.sh -c=flash -a=all-clusters-app -b= -p= ``` - **by using VSCode launch task**: ``` Run and Debug (Ctrl+Shift+D) => Flash Mbed examples => Start Debugging (F5) => (board name) => all-clusters-app => (build profile) ``` The last option uses the Open On-Chip Debugger to open and manage the gdb-server session. Then gdb-client (arm-none-eabi-gdb) upload binary image and reset device. It is possible to connect to an external gdb-server session by using a specific **'Flash Mbed examples [remote]'** task. ### Debugging Debugging can be performed in the same was as with any other Matter example ported to mbed-os platform. The [Open On-Chip Debugger](http://openocd.org/) is used to to open and manage the gdb-server session. Then gdb-client (arm-none-eabi-gdb) connect the server to upload binary image and control debugging. ``` Run and Debug (Ctrl+Shift+D) => Debug Mbed examples => Start Debugging (F5) => (board name) => all-clusters-app => (build profile) ``` It is possible to connect to an external gdb-server session by using specific **'Debug Mbed examples [remote]'** task. ### Testing #### Serial port terminal The application traces are streaming to serial output. To start communication open a terminal session and connect to the serial port of the device. You can use **mbed-tools** for this purpose ([mbed-tools](https://github.com/ARMmbed/mbed-tools)): ``` mbed-tools sterm -p /dev/ttyACM0 -b 115200 -e off ``` After device reset these lines should be visible: ``` [INFO][CHIP]: [-]Mbed all-clusters-app example application start ... [INFO][CHIP]: [-]Mbed all-clusters-app example application run ``` The all-clusters-app application launched correctly and you can follow traces in the terminal. #### CHIP Tools Read the [MbedCommissioning](../../../guides/mbedos_commissioning.md) to see how to use different CHIP tools to commission and control the application within a WiFi network. ### Supported devices | Manufacturer | Hardware platform | Build target | Platform image | Status | Platform components | | ----------------------------------------------------- | ------------------------------------------------------------------------- | --------------------- | ------------------------------------------------------------------------------------------------------ | :----: | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [Cypress
Semiconductor](https://www.cypress.com/) | [CY8CPROTO-062-4343W](https://os.mbed.com/platforms/CY8CPROTO-062-4343W/) | `CY8CPROTO_062_4343W` | ![CY8CPROTO-062-4343W](https://os.mbed.com/media/cache/platforms/p6_wifi-bt_proto.png.250x250_q85.jpg) | ✔ |
LEDs
  • Board has only one usable LED (LED4) which corresponds to USER LED from UI.
Buttons
  • Unused
Slider
  • Unused
| ##### Notes - More details and guidelines about porting new hardware into the Matter project with Mbed OS can be found in [MbedNewTarget](../../../guides/mbedos_add_new_target.md) - Some useful information about HW platform specific settings can be found in `all-clusters-app/mbed/mbed_app.json`. Information about this file syntax and its meaning in mbed-os project can be found here: [Mbed-Os configuration system](https://os.mbed.com/docs/mbed-os/latest/program-setup/advanced-configuration.html)) ## Device UI This section lists the User Interface elements that you can use to control and monitor the state of the device. These correspond to PCB components on the platform image. **USER LED** shows the overall state of the device and its connectivity. The following states are possible: - _Short Flash On (50 ms on/950 ms off)_ — The device is in the unprovisioned (unpaired) state and is waiting for a commissioning application to connect. - _Rapid Even Flashing (100 ms on/100 ms off)_ — The device is in the unprovisioned state and a commissioning application is connected through Bluetooth LE. - _Short Flash Off (950ms on/50ms off)_ — The device is fully provisioned, but does not yet have full network or service connectivity. - _Solid On_ — The device is fully provisioned and has full network and service connectivity. #### Notes Some of the supported boards may not have sufficient number PCB components to follow above description. In that case please refer to [Supported devices](#supported-devices) section and check board's 'Platform components' column f-r additional information about the limitation.