lr14

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LR 14 Click

LR 14 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 : Jun 2024.
• Type : UART type

Software Support

Example Description

This example demonstrates the use of LR 14 Click board by showing the communication between two Click boards configured in P2P network mode.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.LR14

Example Key Functions

• lr14_cfg_setup Config Object Initialization function.

void lr14_cfg_setup ( lr14_cfg_t *cfg );

• lr14_init Initialization function.

err_t lr14_init ( lr14_t *ctx, lr14_cfg_t *cfg );

• lr14_cmd_run This function sends a specified command to the Click module.

void lr14_cmd_run ( lr14_t *ctx, uint8_t *cmd );

• lr14_cmd_set This function sets a value to a specified command of the Click module.

void lr14_cmd_set ( lr14_t *ctx, uint8_t *cmd, uint8_t *value );

• lr14_cmd_get This function is used to get the value of a given command from the Click module.

void lr14_cmd_get ( lr14_t *ctx, uint8_t *cmd );

Application Init

Initializes the driver and logger.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    lr14_cfg_t lr14_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.
    lr14_cfg_setup( &lr14_cfg );
    LR14_MAP_MIKROBUS( lr14_cfg, MIKROBUS_1 );
    if ( UART_ERROR == lr14_init( &lr14, &lr14_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );

    app_state = LR14_POWER_UP;
    log_printf( &logger, ">>> APP STATE - POWER UP <<<\r\n\n" );
}

Application Task

Application task is split in few stages:

• LR14_POWER_UP:

  Powers up the device, performs a device factory reset and reads system information.

• LR14_CONFIG_EXAMPLE:

  Configures device for the LoRa P2P network mode.

• LR14_EXAMPLE:

  Performs a LoRa P2P example by exchanging messages with another LR 14 Click board.

void application_task ( void )
{
    switch ( app_state )
    {
        case LR14_POWER_UP:
        {
            if ( LR14_OK == lr14_power_up( &lr14 ) )
            {
                app_state = LR14_CONFIG_EXAMPLE;
                log_printf( &logger, ">>> APP STATE - CONFIG EXAMPLE <<<\r\n\n" );
            }
            break;
        }
        case LR14_CONFIG_EXAMPLE:
        {
            if ( LR14_OK == lr14_config_example( &lr14 ) )
            {
                app_state = LR14_EXAMPLE;
                log_printf( &logger, ">>> APP STATE - EXAMPLE <<<\r\n\n" );
            }
            break;
        }
        case LR14_EXAMPLE:
        {
            lr14_example( &lr14 );
            break;
        }
        default:
        {
            log_error( &logger, " APP STATE." );
            break;
        }
    }
}

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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