Disclaimer: BLE mesh solution in WICED Studio 6.1 and WICED Studio 6.2 is meant only for evaluation. Limited testing is done for BLE mesh in these releases. Cypress community won't provide any support for BLE mesh until the solution is officially rolled out for the broad market.

 

The Cypress BLE Mesh Solution is fully compliant with the Bluetooth SIG's Mesh Specification and is certified. It is available on WICED studio 6.1 SDK.

 

Part Numbers supported: CYW20706, CYW20719B1

Modules available: CYBT-343026-01 (Based on CYW20706 chip)

Eval Boards: CYBT-343026-EVAL (Based on the CYBT-343026-01 module), CYW920706WCDEVAL based on CYW20706 chip, CYW920719Q40EVB-01 (Based on CYW920719WCD1 module)

Bluetooth Specification: 5.0

Mesh Specification: 1.0

 

The WICED Studio SDK has resources that help in getting started with the BLE Mesh Solution by providing examples projects for all the SIG defined models specified in the Mesh Model Specification 1.0

 

The Mesh firmware examples are available in the WICED Studio in the location: WICED-Studio-6.1\<Platform>\apps\snip\mesh. The Mesh usecase requires a provisioner that creates the network, provisions, configures and control devices of the network. This provisioner can be realized using Cypress's MeshLighting App for Android (located in WICED-Studio-6.1\common\apps\snip\mesh\peerapps\Android\src\bin) or the windows ClientControlMesh Application.

 

Provisioning using MeshLighting Android Application:

 

1) Connect the Eval Board to the PC and load the mesh_onoff_server project. Refer to the corresponding Kit User Guide for details on programming the firmware. Once programmed, the device advertises as an unprovisioned mesh device.

 

2) Copy the apk file of the MeshLighting app to your android phone, install the application and open it.

 

3) In the Options, select "Create Network" and specify a name, say "TestNetwork".

 

Screenshot_2018-01-29-17-13-30-377_com.cypress.le.mesh.meshapp.pngScreenshot_2018-01-25-14-22-54-109_com.cypress.le.mesh.meshapp.png

4) Now you can add your own Rooms in the network. A room is a group of devices that form a part of the whole network, to which commands can be multicasted using a single address. Tap the + icon to add a room and specify a name, say "New Room".

Screenshot_2018-01-25-14-23-23-919_com.cypress.le.mesh.meshapp.png Screenshot_2018-01-25-14-23-53-322_com.cypress.le.mesh.meshapp.png

 

 

5) Tap the ADD DEVICE option to scan for of unprovisioned mesh devices. Once the device is detected, click OK to start the provisioning and also configures the device through series of messages sent to the on/off device. The proxy connection is establish with the first device by default. If the proxy disconnects for some reason, the user can tap the "Connect to proxy" and "Configure" buttons to resume the proxy connection and configuration.

 

6) Repeat step 4 to add any number of other devices to the room. Now we can control the ON/OFF status of the devices in the room by sliding the  ON/OFF switch. We can also specify the transition time. The proxy receives the message and transmits it to the nodes in the network. The change of state in the devices may be indicated by the UART Prints and a LED toggle on the board.

 

Screenshot_2018-01-25-21-51-32-483_com.cypress.le.mesh.meshapp.png

 

7) After receiving the messages, the devices send status, which is displayed in the Phone as shown below:

 

Screenshot_2018-01-25-21-57-29-849_com.cypress.le.mesh.meshapp.png

 

8) Instead of the mesh_onoff_server example, the mesh_light_hsl_server example can also be used with the App. The App can now modify the Color of the light (By setting Hue, Saturation and Lightness values). The Color setting in the GUI can now be accessed as below.

 

Screenshot_2018-02-09-19-14-53-232_com.cypress.le.mesh.meshapp.pngScreenshot_2018-02-09-19-14-58-481_com.cypress.le.mesh.meshapp.png

 

WICED Studio also provides an example for mesh_onoff_client which acts as a switch for the mesh_onoff_server devices. The device can be provisioned into the network using the App. Upon configuration, the device will be listed as a switch. In the below figure the light1 is a provisioned mesh_onoff_client device and the light2 is a mesh_onoff_server project as indicated by icons.

 

Screenshot_2018-02-15-19-17-54-320_com.cypress.le.mesh.meshapp.png

 

Tap on the light1 to see options for assigning light2 to the switch.

 

Screenshot_2018-02-15-19-18-00-295_com.cypress.le.mesh.meshapp.pngScreenshot_2018-02-15-19-18-09-904_com.cypress.le.mesh.meshapp.png

 

Provisioning using windows ClientControlMesh Application:

 

The ClientControlMesh Application for windows is located in "WICED-Studio-6.1\common\apps\snip\mesh\ClientControl\Release". This application sends WICED HCI commands to devices via HCI UART. This app can be used to perform provisioning by sending commands to an embedded mesh controller device that acts as a provision client. A provisioning client can be realized using the mesh_provision_client example firmware in the SDK. The ClientControlMesh tool sends Mesh events as WICED HCI commands. So make sure the C_FLAGS += -DHCI_CONTROL flag is enabled in the makefile.mk in your project.

 

1) Connect an Eval board to the PC and load the mesh_provison_client example to it.

 

2) Open the ClientControlMesh Application and choose the Light Control Tab. and select the HCI UART COM Port number of the provision client device in the GUI.

 

3) Click the "Open" button. This will configure the provision client device, as shown by the series of messages in Trace box in the bottom.

 

4) Click "Create" button to add a network and name it as say, "TestNetwork"

 

4) Connect one more Eval board to the PC and load the mesh_onoff_server or mesh_level_server or mesh_hsl_server example. The device will advertise as an unprovisioned mesh device.

 

5) Click the "Scan Unprovisioned" button. The provision client will scan for the unprovisioned device and lists the details.

 

6) Click "Stop Scanning" and then "Provision and Configure" buttons. The mesh device will be added to the "TestNetwork" after provisioning and configuration.

 

7) Now commands can be sent and status can be received using the tools in the bottom pane of the ClientControlMesh App. In the figure shown below, the "OnOff serve (0002)" device has been provisioned and the On/Off state of the light can be changed using the Get and Set buttons.

 

8) Repeat steps 4,5,6,7 to add more devices to the network and control them.

 

cc5.png

 

The ClientControlMesh App can also be used to control switches (say, mesh_Onoff_Client, mesh_hsl_client, mesh_level_client devices) by sending WICED HCI commands.

 

1) Create a network, provision a switch and a light using a provisioner (say MeshLighting Android App or Mesh_provision_client by following the above guidelines.

2) In ClientControl.exe and select the HCI UART COM Port number of the Switch device (say, mesh_onoff_client) in the GUI.

2) Open Models tab.

3) Choose "onoff" from dropdown.

4) Check the "use publication info" and "Reliable" checkboxes.

5)  Set appropriate on/off state and click on set. The light should respond appropriately.

 

clientcontrol.png

 

To unprovision a device from the network, long press the user button on the Eval Board. Now the provisioning process can be started afresh.

 

The base code common for all the Mesh modules are located in:

WICED-Studio-6.1\20706-A2_Bluetooth\libraries\mesh_app_lib