lteiot9

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LTE IoT 9 Click

LTE IoT 9 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 : Luka FIlipovic
• Date : Feb 2021.
• Type : UART type

Software Support

Example Description

This application shows capability of LTE IoT 9 Click board. It connects to network with standard "AT" commands, then sends SMS whit SIM card, and then logs GNNS data.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.LTEIoT9

Example Key Functions

• lteiot9_cfg_setup Config Object Initialization function.

void lteiot9_cfg_setup ( lteiot9_cfg_t *cfg );

• lteiot9_init Initialization function.

err_t lteiot9_init ( lteiot9_t *ctx, lteiot9_cfg_t *cfg );

• lteiot9_default_cfg Click Default Configuration function.

void lteiot9_default_cfg ( lteiot9_t *ctx );

• lteiot9_generic_read Function reads a desired number of data bytes by using UART serial interface.

err_t lteiot9_generic_read ( lteiot9_t *ctx, char *data_buf, uint16_t max_len );

• lteiot9_send_cmd Function sends the specified command to the Click module.

void lteiot9_send_cmd ( lteiot9_t *ctx, char *cmd );

• lteiot9_set_sim_apn Function sets APN for sim card.

void lteiot9_set_sim_apn ( lteiot9_t *ctx, char *sim_apn );

Application Init

Initializes driver and wake-up module and checks communication and device version.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    lteiot9_cfg_t lteiot9_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 " );
    Delay_ms ( 1000 );

    // Click initialization.

    lteiot9_cfg_setup( &lteiot9_cfg );
    LTEIOT9_MAP_MIKROBUS( lteiot9_cfg, MIKROBUS_1 );
    err_t init_flag  = lteiot9_init( &lteiot9, &lteiot9_cfg );
    if ( init_flag == UART_ERROR ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    log_info( &logger, " Power on device... " );
    lteiot9_default_cfg ( &lteiot9 );
    lteiot9_process(  );
    lteiot9_clear_app_buf(  );
    
    lteiot9_send_cmd_with_parameter( &lteiot9, LTEIOT9_CMD_CFUN, "1,1" );
    lteiot9_power_up_wait();    
    app_buf_len = 0;
    app_buf_cnt = 0;
    
    //AT
    lteiot9_send_cmd( &lteiot9, LTEIOT9_CMD_AT );
    app_error_flag = lteiot9_rsp_check();
    lteiot9_error_check( app_error_flag );
    Delay_ms ( 500 );
    //ATI
    lteiot9_send_cmd( &lteiot9, LTEIOT9_CMD_ATI );
    app_error_flag = lteiot9_rsp_check();
    lteiot9_error_check( app_error_flag );
    Delay_ms ( 500 );

    app_connection_status = CONFIGURATION_FOR_NETWORK;
    log_info( &logger, " Application Task " );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

Application Task

Application taks is split in few stages:

• CONFIGURATION_FOR_NETWORK : Sets configuration to device to be able to connect to newtork.
• CHECK_NETWORK_CONNECTION : Checks device connection status till device is connected to network.
• SENDING_SMS : Sends SMS message to desired number in text mode.
• CONFIGURATION_FOR_GNSS : Sets configuration to device to enable GNSS data.
• GNSS_DATA : Reads and parses data from device to get latitude, longitude and altitude from device

void application_task ( void ) 
{    
    switch( app_connection_status )
    {
        case CONFIGURATION_FOR_NETWORK:
        {
            lteiot9_config_device_for_network( );
            break;
        }
        case CHECK_NETWORK_CONNECTION:
        {
            lteiot9_check_connection_to_network( );
            break;
        }
        case SENDING_SMS:
        {
            lteiot9_send_sms( );
            break;
        }
        case CONFIGURATION_FOR_GNSS:
        {
            lteiot9_config_device_for_gnss( );
            break;
        }
        case GNSS_DATA:
        {
            lteiot9_gnss_data();

            break;
        }
        default:
        {
            log_error( &logger, "Application status error!" );
            app_connection_status = CHECK_NETWORK_CONNECTION;
            Delay_ms ( 1000 );
            break;
        }
    }
}

Note

In order for the example to work, user needs to set the phone number and sim apn to which he wants to send an SMS

Enter valid data for the following macros: SIM_APN and PHONE_NUMBER_TO_MESSAGE.

E.g. SIM_APN "vip.mobile", PHONE_NUMBER_TO_MESSAGE "999999999"

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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