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mikroSDK Library

LightRanger 3 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.17

mikroSDK Library: 2.0.0.0

Category: Optical

Downloaded: 423 times

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License: MIT license  

Light Ranger 3 Click is an accurate distance measurement Click board™ based on a ToF ( Time of Flight ) measurement principle. The Simblee™ enabled RFD77402 rangefinder module from RF Digital is a complete measurement stack on the chip.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


Light Ranger 3 Click

Light Ranger 3 Click is an accurate distance measurement Click board™ based on a ToF ( Time of Flight ) measurement principle. The Simblee™ enabled RFD77402 rangefinder module from RF Digital is a complete measurement stack on the chip.

lightranger3_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Jan 2020.
  • Type : I2C type

Software Support

We provide a library for the LightRanger3 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 LightRanger3 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void lightranger3_cfg_setup ( lightranger3_cfg_t *cfg );

  • Initialization function.

    LIGHTRANGER3_RETVAL lightranger3_init ( lightranger3_t ctx, lightranger3_cfg_t cfg );

  • Click Default Configuration function.

    void lightranger3_default_cfg ( lightranger3_t *ctx );

Example key functions :

  • This function go to measurement mode.

    uint8_t lightranger3_set_measurement_mode ( lightranger3_t *ctx );

  • This function reads distance.

    uint16_t lightranger3_get_distance ( lightranger3_t *ctx );

  • This function reads confidence value.

    uint16_t lightranger3_get_confidence_value ( lightranger3_t *ctx );

Examples Description

This app precisely measure distance without making actual contact.

The demo application is composed of two sections :

Application Init

Initializes driver init and configuration chip.


void application_init ( void )
{
    log_cfg_t log_cfg;
    lightranger3_cfg_t cfg;
    uint8_t init_status;

    /** 
     * 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 ----\r\n" );

    //  Click initialization.

    lightranger3_cfg_setup( &cfg );
    LIGHTRANGER3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    lightranger3_init( &lightranger3, &cfg );

    init_status = lightranger3_device_init( &lightranger3 );

    if ( init_status == 0 )
    {
        log_printf( &logger, " --- Device init successfully --- \r\n " );
    }
    else
    {
        log_printf( &logger, " ---  Device init error --- \r\n " );
    }
}

Application Task

Includes measurements, reads distance, and logs distance to USBUART for every 300 ms. Distance measurement at distances ranging from 100 mm to 2000 mm.


void application_task ( void )
{
    uint16_t distance;

    lightranger3_take_single_measurement( &lightranger3 );

    distance = lightranger3_get_distance( &lightranger3 );

    log_printf( &logger, "Distance = %u mm \r\n ", distance );

    Delay_ms ( 300 );
} 

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.LightRanger3

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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