lyra24p

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LYRA 24P Click

LYRA 24P 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 : Nenad Filipovic
• Date : Nov 2023.
• Type : UART type

Software Support

Example Description

This example demonstrates the use of LYRA 24P Click board by processing the incoming data and displaying them on the USB UART.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.LYRA24P

Example Key Functions

• lyra24p_cfg_setup Config Object Initialization function.

void lyra24p_cfg_setup ( lyra24p_cfg_t *cfg );

• lyra24p_init Initialization function.

err_t lyra24p_init ( lyra24p_t *ctx, lyra24p_cfg_t *cfg );

• lyra24p_write_command This function writes a desired command by using UART serial interface.

err_t lyra24p_write_command ( lyra24p_t *ctx, uint8_t *command );

• lyra24p_write_cmd_param This function writes a desired command, command value, prefix and parameter by using UART serial interface.

err_t lyra24p_write_cmd_param ( lyra24p_t *ctx, uint8_t *command, uint8_t *cmd_val, uint8_t *prefix, uint8_t *param );

• lyra24p_inquire_command This function writes a desired inquire command, command value and enable/disable quote by using UART serial interface.

err_t lyra24p_inquire_command ( lyra24p_t *ctx, uint8_t *command, uint8_t *cmd_val, uint8_t en_query );

Application Init

Initializes the driver and performs a factory reset. In the next step, the demo app requests the LYRA module name, software version, and MAC address and sets the local device name, sets the module into VSP mode and start advertising.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    lyra24p_cfg_t lyra24p_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    lyra24p_cfg_setup( &lyra24p_cfg );
    LYRA24P_MAP_MIKROBUS( lyra24p_cfg, MIKROBUS_1 );
    if ( UART_ERROR == lyra24p_init( &lyra24p, &lyra24p_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    lyra24p_hw_reset( &lyra24p );
    Delay_ms ( 500 );

    lyra24p_write_command( &lyra24p, LYRA24P_CMD_AT );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_write_command( &lyra24p, LYRA24P_CMD_AT );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_inquire_command( &lyra24p, LYRA24P_CMD_ATI, 
                                       LYRA24P_ATI_ARG_DEV_NAME, 
                                       LYRA24P_QUERY_DIS );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_inquire_command( &lyra24p, LYRA24P_CMD_ATI, 
                                       LYRA24P_ATI_ARG_FW_VER, 
                                       LYRA24P_QUERY_DIS );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_inquire_command( &lyra24p, LYRA24P_CMD_ATI, 
                                       LYRA24P_ATI_ARG_BT_ADDR, 
                                       LYRA24P_QUERY_DIS );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_write_cmd_param( &lyra24p, LYRA24P_CMD_ATS, 
                                       LYRA24P_ATS_ARG_DEVNAME_FORMAT, 
                                       LYRA24P_PREFIX_SYMBOL_SET_VAL, 
                                       LYRA24P_ATS_VAL_DEVNAME );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );
    
    lyra24p_set_device_name( &lyra24p, DEVICE_NAME );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_inquire_command( &lyra24p, LYRA24P_CMD_ATPS, 
                                       LYRA24P_PREFIX_SYMBOL_ZERO, 
                                       LYRA24P_QUERY_EN );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_write_command( &lyra24p, LYRA24P_CMD_ATLADV );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );

    lyra24p_write_command( &lyra24p, LYRA24P_CMD_ATLVSP );
    lyra24p_check_response( LYRA24P_RSP_OK );
    Delay_ms ( 500 );
}

Application Task

Initializes the driver and performs a factory reset. In the next step, the demo app are requesting the LYRA module name, software version and MAC address and sets the local device name "LYRA 24P Click",
sets the module into VSP mode and start adverttising.

void application_task ( void ) 
{
    if ( LYRA24P_OK == lyra24p_process( &lyra24p ) ) 
    {
        lyra24p_log_app_buf( );
        lyra24p_clear_app_buf( );
        Delay_ms ( 100 );
    }
}

Note

We have used the BLE Scanner 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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