btez2

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BT-EZ 2 Click

BT-EZ 2 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : Stefan Filipovic
• Date : Feb 2025.
• Type : UART type

Software Support

Example Description

This example demonstrates the use of BT-EZ 2 Click board by processing data from a connected BLE device.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.BTEZ2

Example Key Functions

• btez2_cfg_setup This function initializes Click configuration structure to initial values.

  void btez2_cfg_setup ( btez2_cfg_t *cfg );

• btez2_init This function initializes all necessary pins and peripherals used for this Click board.

  err_t btez2_init ( btez2_t *ctx, btez2_cfg_t *cfg );

• btez2_cmd_action This function sends a specified action command to the Click module.

  void btez2_cmd_action ( btez2_t *ctx, uint8_t *cmd, uint8_t *params );

• btez2_cmd_set This function sends a specified set command to the Click module.

  void btez2_cmd_set ( btez2_t *ctx, uint8_t *cmd, uint8_t *params );

• btez2_read_packet This function reads a response or event packet from the Click module and stores it in ctx->evt_pkt structure.

  err_t btez2_read_packet ( btez2_t *ctx );

Application Init

Initializes the driver and logger.

void application_init ( void )
{
    log_cfg_t log_cfg;  
    btez2_cfg_t btez2_cfg;  

    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );
 
    // Click initialization.
    btez2_cfg_setup( &btez2_cfg );
    BTEZ2_MAP_MIKROBUS( btez2_cfg, MIKROBUS_1 );
    if ( UART_ERROR == btez2_init( &btez2, &btez2_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
 
    app_state = BTEZ2_POWER_UP;
    log_printf( &logger, ">>> APP STATE - POWER UP <<<\r\n\n" );
}

Application Task

Application task is split in few stages:

• BTEZ2_POWER_UP:

  Powers up the device and checks the communication.

• BTEZ2_CONFIG_EXAMPLE:

  Restores factory settings and reads the BT address and name.

• BTEZ2_EXAMPLE:

  Performs a BT terminal example by processing all data from a connected BLE device and sending back an adequate response messages.

void application_task ( void )
{
    switch ( app_state )
    {
        case BTEZ2_POWER_UP:
        {
            if ( BTEZ2_OK == btez2_power_up( &btez2 ) )
            {
                app_state = BTEZ2_CONFIG_EXAMPLE;
                log_printf( &logger, ">>> APP STATE - CONFIG EXAMPLE <<<\r\n\n" );
            }
            break;
        }
        case BTEZ2_CONFIG_EXAMPLE:
        {
            if ( BTEZ2_OK == btez2_config_example( &btez2 ) )
            {
                app_state = BTEZ2_EXAMPLE;
                log_printf( &logger, ">>> APP STATE - EXAMPLE <<<\r\n\n" );
            }
            break;
        }
        case BTEZ2_EXAMPLE:
        {
            btez2_example( &btez2 );
            break;
        }
        default:
        {
            log_error( &logger, " APP STATE." );
            break;
        }
    }
}

Note

We have used the Serial Bluetooth Terminal smartphone application for the test.

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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