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mikroSDK Library

LR 5 click

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Author: MIKROE

Last Updated: 2024-01-31

Package Version: 2.1.0.10

mikroSDK Library: 2.0.0.0

Category: LoRa

Downloaded: 112 times

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License: MIT license  

LR 5 Click is a compact add-on board that contains a long-range transceiver. This board features the 32001409, RF technology-based SRD transceiver, which operates at a frequency of 915MHz from Mipot.

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mikroSDK Library Blog


LR 5 click

LR 5 Click is a compact add-on board that contains a long-range transceiver. This board features the 32001409, RF technology-based SRD transceiver, which operates at a frequency of 915MHz from Mipot.

lr5_click.png

click Product page


Click library

  • Author : MikroE Team
  • Date : jun 2020.
  • Type : UART GSM/IOT type

Software Support

We provide a library for the LR5 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for LR5 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void lr5_cfg_setup ( lr5_cfg_t *cfg );

  • Initialization function.

    LR5_RETVAL lr5_init ( lr5_t ctx, lr5_cfg_t cfg );

Example key functions :

  • This command allows user to get the 32bit firmware version.

    void lr5_get_fw_version_cmd ( lr5_t *ctx );

  • This command allows user to get the 32bit Mipot serial number.

    void lr5_get_serial_no_cmd ( lr5_t *ctx );

  • This command allows user to get the module current status.

    void lr5_get_session_status_cmd ( lr5_t *ctx );

Examples Description

This example reads and processes data from LR 5 clicks.

The demo application is composed of two sections :

Application Init

Initializes UART interface and UART interrupt, and performs a module reset commands.


void application_init ( void )
{
    log_cfg_t log_cfg;
    lr5_cfg_t cfg;

    /** 
     * 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.

    lr5_cfg_setup( &cfg );
    LR5_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    lr5_init( &lr5, &cfg );

    lr5_response_handler_set( &lr5, &make_response );
    Delay_ms( 1000 );

    lr5_reset_cmd( &lr5 );
    wait_response( );
    Delay_ms( 1000 );
    lr5_factory_reset_cmd( &lr5 );
    wait_response( );

    log_printf( &logger, "** LR 5 (MIPOT 32001409) reset is done **\r\n" );
    log_printf( &logger, "\r\n" );
    Delay_ms( 1000 );
}

Application Task

Performs a group of commands to get FW version, the serial number provided by Mipot, DevEUI, the session status, the activation status and the parameters for the selected channel. Also sets the next transmission data rate to the desired value. The responses from the Mipot module to the host will be sent to the uart terminal.


void application_task ( void )
{
    lr5_process(  );

    log_printf( &logger, "** FW version reading...\r\n" );
    lr5_get_fw_version_cmd( &lr5 );
    wait_response( );

    log_printf( &logger, "** Serial number reading...\r\n" );
    lr5_get_serial_no_cmd( &lr5 );
    wait_response( );

    log_printf( &logger, "** DevEUI reading...\r\n" );
    lr5_get_dev_eui_cmd( &lr5 );
    wait_response( );

    log_printf( &logger, "** Session status reading...\r\n" );
    lr5_get_session_status_cmd( &lr5 );
    wait_response( );
    switch ( response.cmd_data[ 0 ] )
    {
        case 0x00 :
        {
            log_printf( &logger, "Idle.\r\n" );
        break;
        }
        case 0x01 :
        {
            log_printf( &logger, "Busy (LR session running).\r\n" );
        break;
        }
        case 0x02 :
        {
            log_printf( &logger, "Device not activated.\r\n" );
        break;
        }
        case 0x03 :
        {
            log_printf( &logger, "Delayed.\r\n" );
        break;
        }
        default :
        {
        break;
        }
    }
    log_printf( &logger, "***********************************************\r\n" );
    Delay_ms( 1000 );

    log_printf( &logger, "** Activation status reading...\r\n" );
    lr5_get_activation_status_cmd( &lr5 );
    wait_response( );
    switch ( response.cmd_data[ 0 ] )
    {
        case 0x00 :
        {
            log_printf( &logger, "Not activated.\r\n" );
        break;
        }
        case 0x01 :
        {
            log_printf( &logger, "Joining...\r\n" );
        break;
        }
        case 0x02 :
        {
            log_printf( &logger, "Joined.\r\n" );
        break;
        }
        case 0x03 :
        {
            log_printf( &logger, "MAC ERROR.\r\n" );
        break;
        }
        default :
        {
        break;
        }
    }
    log_printf( &logger, "***********************************************\r\n" );
    Delay_ms( 1000 );

    log_printf( &logger, "** Next TX Data Rate setting...\r\n" );
    lr5_set_next_dr_cmd( &lr5, LR5_SF10_125KHZ );
    wait_response( );
    if ( response.cmd_data[ 0 ] == 0x00 )
    {
        log_printf( &logger, "Success!\r\n" );
    }
    else
    {
        log_printf( &logger, "Error!\r\n" );
    }
    log_printf( &logger, "***********************************************\r\n" );
    Delay_ms( 1000 );

    log_printf( &logger, "** Channel parameters reading...\r\n" );
    lr5_get_ch_param_cmd( &lr5, LR5_CH_IDX_15 );
    wait_response( );
    Delay_ms( 10000 );
} 

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.LR5

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


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