Matter PSoC6 Lock Example#

An example showing the use of Matter on the Infineon CY8CKIT-062S2-43012 board.



Introduction#

The PSoC6 lock example provides a demonstration of a door lock control device, built using Matter and the Infineon Modustoolbox SDK. It can be controlled by a Matter controller over Wi-Fi network.

The PSoC6 device can be commissioned over Bluetooth Low Energy where the device and the Matter controller will exchange security information with the Rendezvous procedure. Wi-Fi Network credentials are then provided to the PSoC6 device which will then join the network.

Building#

  • Modustoolbox Software

    Refer to integrations/docker/images/chip-build-infineon/Dockerfile or scripts/examples/gn_psoc6_example.sh for downloading the Software and related tools.

  • Install some additional tools (likely already present for Matter developers): $ sudo apt install gcc g++ clang ninja-build python python3-venv libssl-dev libavahi-client-dev libglib2.0-dev git cmake python3-pip

  • Supported hardware: CY8CKIT-062S2-43012

  • Build the example application:

      $ source scripts/activate.sh
      $ scripts/build/build_examples.py --no-log-timestamps --target 'infineon-psoc6-lock' build
    
  • To delete generated executable, libraries and object files use:

      $ cd ~/connectedhomeip
      $ rm -rf out/
    

To build with Infineon Hardware Security Module-OPTIGA™ Trust M for Device attestation and other security use cases, please refer to the Building with OPTIGA™ Trust M as HSM for more instructions

Flashing the Application#

  • Put CY8CKIT-062S2-43012 board on KitProg3 CMSIS-DAP Mode by pressing the MODE SELECT button. KITPROG3 STATUS LED is ON confirms board is in proper mode.

  • On the command line:

      $ cd ~/connectedhomeip
      $ python3 out/infineon-psoc6-lock/chip-psoc6-lock-example.flash.py
    

Commissioning and cluster control#

Commissioning can be carried out using BLE.

Setting up Chip tool#

Once PSoC6 is up and running, we need to set up chip-tool on Raspberry Pi 4 to perform commissioning and cluster control.

  • Set up python controller.

       $ cd {path-to-connectedhomeip}
       $ ./scripts/examples/gn_build_example.sh examples/chip-tool out/debug
    
  • Execute the controller.

       $ ./out/debug/chip-tool
    

Commissioning over BLE#

Run the built executable and pass it the discriminator and pairing code of the remote device, as well as the network credentials to use.

     $ ./out/debug/chip-tool pairing ble-wifi 1234 ${SSID} ${PASSWORD} 20202021 3840

     Parameters:
     1. Discriminator: 3840
     2. Setup-pin-code: 20202021
     3. Node ID: 1234 (you can assign any node id)
     4. SSID : Wi-Fi SSID
     5. PASSWORD : Wi-Fi Password

Notes#

Raspberry Pi 4 BLE connection issues can be avoided by running the following commands. These power cycle the BlueTooth hardware and disable BR/EDR mode.

      $ sudo btmgmt -i hci0 power off
      $ sudo btmgmt -i hci0 bredr off
      $ sudo btmgmt -i hci0 power on

Cluster control#

  • After successful commissioning, use the OnOff cluster command to toggle device between On or Off states.

    $ ./out/debug/chip-tool onoff on 1234 1

    $ ./out/debug/chip-tool onoff off 1234 1

  • Cluster OnOff can also be done using the USER_BTN1 button on the board. This button is configured with APP_LOCK_BUTTON in include/AppConfig.h. Press USER_BTN1 on the board to toggle between lock and unlock states. The Lock/Unlock status of door can be observed with ‘LED9’ on the board. This LED is configured with LOCK_STATE_LED in include/AppConfig.h.

Factory Reset#

  • Commissioned Wi-Fi Credentials can be cleared by pressing USER_BTN2 button on the board. All the data configured on the device during the initial commissioning will be deleted and device will be ready for commissioning again.

  • Pressing the button again within 5 seconds will cancel the factory reset of the board.

Building with Optiga Trust M as HSM#

Infineon Hardware Security Module-OPTIGA™ Trust M is a high-end security solution that provides an anchor of trust for connecting IoT devices to the cloud, giving every IoT device its own unique identity.

  • Supported hardware setup: CY8CKIT-062S2-43012

    OPTIGA™ Trust M MTR

    OPTIGA™ Trust Adapter

  • Building:

    Follow the steps to build with OPTIGA™ Trust M for device attestation use case:

      $ source scripts/activate.sh
      $ scripts/build/build_examples.py --no-log-timestamps --target 'infineon-psoc6-lock-trustm' build
    
  • To delete generated executable, libraries and object files use:

    $ cd ~/connectedhomeip
    $ rm -rf out/
    
  • Proceed to OPTIGA™ Trust M Provisioning section to complete the credential storage into HSM.

Optiga Trust M Provisioning#

For the description of OPTIGA™ Trust M Provisioning with test DAC generation and PAI and CD storage, please refer to Infineon OPTIGA™ Trust M Provisioning

After completing OPTIGA™ Trust M Provisioning, proceed to Flashing the Application section to continue with subsequent steps.

OTA Software Update#

For the description of Software Update process with infineon PSoC6 example applications see Infineon PSoC6 OTA Software Update