nanogps3

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Nano GPS 3 Click

Nano GPS 3 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 : Jul 2023.
• Type : UART/I2C type

Software Support

Example Description

This example demonstrates the use of Nano GPS 3 Click by reading and displaying the GPS coordinates.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.NanoGPS3

Example Key Functions

• nanogps3_cfg_setup Config Object Initialization function.

void nanogps3_cfg_setup ( nanogps3_cfg_t *cfg );

• nanogps3_init Initialization function.

err_t nanogps3_init ( nanogps3_t *ctx, nanogps3_cfg_t *cfg );

• nanogps3_default_cfg Click Default Configuration function.

void nanogps3_default_cfg ( nanogps3_t *ctx );

• nanogps3_parse_gngga Nano GPS 3 parse GNGGA function.

err_t nanogps3_parse_gngga ( char *rsp,  uint8_t cmd, uint8_t element, char *element_data );

• nanogps3_generic_read Nano GPS 3 data reading function.

err_t nanogps3_generic_read ( nanogps3_t *ctx, uint8_t *data_out, uint8_t len );

• nanogps3_generic_write Nano GPS 3 data writing function.

err_t nanogps3_generic_write ( nanogps3_t *ctx, uint8_t *data_in, uint8_t len );

Application Init

Initializes the driver and resets the Click board.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    nanogps3_cfg_t nanogps3_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.
    nanogps3_cfg_setup( &nanogps3_cfg );
    NANOGPS3_MAP_MIKROBUS( nanogps3_cfg, MIKROBUS_1 );
    err_t init_flag = nanogps3_init( &nanogps3, &nanogps3_cfg ); 
    if ( ( UART_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    nanogps3_default_cfg( &nanogps3 );
    log_info( &logger, " Application Task " );
}

Application Task

Reads the received data, parses the GNGGA info from it, and once it receives the position fix it will start displaying the coordinates on the USB UART.

void application_task ( void ) 
{
    nanogps3_process( &nanogps3 );
    if ( app_buf_len > ( sizeof( NANOGPS3_RSP_GNGGA ) + NANOGPS3_NMEA_GNGGA_NUM_ELEMENT ) ) 
    {
        nanogps3_parser_application( app_buf );
    }
}

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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