3.6.4.16 BLE 2 Click Board Example on SAM E51 Curiosity Nano Evaluation Kit

Description

This example demonstrates the BLE capability of BLE 2 Click board on SAM E51 Curiosity Nano Evaluation Kit.

This application connects to the MBD (Microchip Bluetooth Data) android application running on an Android Smartphone over Bluetooth low energy using the BLE 2 click board and sends a battery charge indicator (in percentage) message through a custom profile.

Modules/Technology Used

Hardware Used

Software/Tools Used

This project has been verified to work with the following versions of software tools:

Refer Project Manifest present in harmony-manifest-success.yml under the project folder firmware/src/config/sam_e51_cnano

• Refer the Release Notes to know the MPLAB X IDE and MCC Plugin version.

Because Microchip regularly updates tools, occasionally issue(s) could be discovered while using the newer versions of the tools. If the project does not seem to work and version incompatibility is suspected. It is recommended to double-check and use the same versions that the project was tested with. To download original version of MPLAB Harmony v3 packages, refer to document How to Use the MPLAB Harmony v3 Project Manifest Feature (DS90003305).

Setup

Programming Hex File

The pre-built hex file can be programmed by following the below steps.

Programming/Debugging Application Project

Running the Demo

Note: Before proceeding, install the Microchip Bluetooth Data android app in an Android Smartphone.

• Enable Bluetooth and location from Smartphone settings.
• Perform reset by unplugging and re-plugging the power cable of SAM E51 Curiosity Nano.
• Open the Microchip Bluetooth Data (MBD) android app from the smartphone and tap on BLE Connect icon on the dashboard. If prompted, allow the application to turn on Bluetooth.

  

• Scan for Bluetooth devices by tapping START SCAN options on the MBD APP.

  

• The BLE 2 device should appear as BLE2CLICK in the list of Bluetooth devices.

  

• Tap on the BLE2CLICK device to connect to the device.

  

  

• Once the device is connected, under Service List select battery service.

  

• A battery service screen appears and the user can observe the battery percentage getting updated.

  

  

Instructions to Add ble2 Functionality to the Application

The user could use this demonstration as an example to add ble functionality to the MPLAB Harmony v3 based application. Follow the below steps.

1. If the user has not downloaded the ble2 demo yet Click Here to download, otherwise go to next step.
2. Unzip the downloaded .zip file.
3. From the unzipped folder ble2/firmware/src, copy the folder click_routines to the folder firmware/src under the MPLAB Harmony v3 application project.
4. Open MPLAB X IDE.
5. Open the application project.
6. In the project explorer, right click on folder Header Files and add a sub folder click_routines by selecting Add Existing Items from Folders...

   

7. Click on Add Folder... button.

   

8. Select the click_routines folder and select Files of Types as Header Files.

   

9. Click on Add button to add the selected folder.

   

10. The ble2 click example header files gets added to the project.

    

11. In the project explorer, right click on folder Source Files and add a sub folder click_routines by selecting Add Existing Items from Folders...

    

12. Click on Add Folder... button.

    

13. Select the click_routines folder and select Files of Types as Source Files.

    

14. Click on Add button to add the selected folder.

    

15. The ble2 click example source files gets added to the project.

    

16. The ble2 click example uses the USART and Timer peripherals. The configuration of these peripherals for the application depends on the 32-bit MCU and development board the user is using.
    • Configure USART:
      • Add the SERCOM(USART) peripheral block to the MCC project graph.
      • Configure USART Pins using MCC Pin configuration Window.
        The USART configuration depends on:

        • 32-bit MCU
        • 32-bit MCU development board
        • The socket on which the user has mounted the ble2 click board

          Example: The ble2 click example on SAM E51 Curiosity Nano Evaluation Kit uses mikroBUS socket #1 on the Curiosity Nano Base for Click boards to mount the ble2 click board. The USART lines from MCU coming to this socket are from the SERCOM4 peripheral on the MCU.

          

          

      • BLE 2 click board need 3 additional GPIO pins

        

    • Configure Timer:
      • Configure Timer peripheral block in the MCC project graph.
        The Timer configuration depends on:

        • 32-bit MCU

          Example: The ble2 click example on SAM E51 Curiosity Nano Evaluation Kit uses SysTick timer module on the MCU to implement the time requirement of ble2 click routines.

          

    • Map Generic Macros:
      • After generating the project, following the above configuration, map the generic macros used in the click routines to the Harmony PLIB APIs of the 32-bit MCU the project is running on.
      • The generic macros should be mapped in the header file click_interface.h.

        

      Example: The ble2 click routines for the example on SAM E51 Curiosity Nano Evaluation Kit uses the following Harmony PLIB APIs.

      

    The click_routines folder contain an example C source file ble2_example.c. The user could use ble2_example.c as a reference to add ble2 functionality to the application.

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