lightranger11

---

LightRanger 11 Click

LightRanger 11 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.

---

Click Library

• Author : Nenad Filipovic
• Date : Aug 2023.
• Type : I2C type

Software Support

Example Description

This example demonstrates the use of LightRanger 11 Click board by reading and displaying 8x8 zones measurements on the USB UART.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.LightRanger11

Example Key Functions

• lightranger11_cfg_setup Config Object Initialization function.

void lightranger11_cfg_setup ( lightranger11_cfg_t *cfg );

• lightranger11_init Initialization function.

err_t lightranger11_init ( lightranger11_t *ctx, lightranger11_cfg_t *cfg );

• lightranger11_default_cfg Click Default Configuration function.

err_t lightranger11_default_cfg ( lightranger11_t *ctx );

• lightranger11_get_ranging_data LightRanger 11 get ranging data function.

err_t lightranger11_get_ranging_data ( lightranger11_t *ctx, lightranger11_results_data_t *results );

• lightranger11_get_resolution LightRanger 11 get resolution function.

err_t lightranger11_get_resolution ( lightranger11_t *ctx, uint8_t *resolution );

• lightranger11_get_int_pin LightRanger 11 get int pin function.

uint8_t lightranger11_get_int_pin ( lightranger11_t *ctx );

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    lightranger11_cfg_t lightranger11_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.
    lightranger11_cfg_setup( &lightranger11_cfg );
    LIGHTRANGER11_MAP_MIKROBUS( lightranger11_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == lightranger11_init( &lightranger11, &lightranger11_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( LIGHTRANGER11_ERROR == lightranger11_default_cfg ( &lightranger11 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Reads all zone measurements approximately every 500ms and logs them to the USB UART as an 8x8 map. The silicon temperature measurement in degrees Celsius is also displayed.

void application_task ( void ) 
{
    if ( !lightranger11_get_int_pin ( &lightranger11 ) )
    {
        lightranger11_results_data_t results;
        uint8_t resolution, map_side;
        err_t error_flag = lightranger11_get_resolution ( &lightranger11, &resolution );
        error_flag |= lightranger11_get_ranging_data ( &lightranger11, &results );
        if ( LIGHTRANGER11_OK == error_flag )
        {
            map_side = ( LIGHTRANGER11_RESOLUTION_4X4 == resolution ) ? 4 : 8;
            log_printf ( &logger, "\r\n %ux%u MAP (mm):\r\n", ( uint16_t ) map_side, ( uint16_t ) map_side );
            for ( uint16_t cnt = 1; cnt <= resolution; cnt++ )
            {
                log_printf ( &logger, " %u\t", results.distance_mm[ cnt - 1 ] );
                if ( 0 == ( cnt % map_side ) )
                {
                    log_printf ( &logger, "\r\n" );
                }
            }
            log_printf ( &logger, " Silicon temperature : %d degC\r\n", ( int16_t ) results.silicon_temp_degc );
        }
    }
}

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.

---