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mikroSDK Library

Load Cell 2 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.18

mikroSDK Library: 2.0.0.0

Category: Force

Downloaded: 396 times

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License: MIT license  

Load cell 2 Click is a weight measurement Click which utilizes a load cell element, in order to precisely measure the weight of an object. The Load Cell 2 Click can be used with the strain gauge type of load cells with external differential reference voltage range from 0.1V to 5V.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


Load Cell 2 Click

Load cell 2 Click is a weight measurement Click which utilizes a load cell element, in order to precisely measure the weight of an object. The Load Cell 2 Click can be used with the strain gauge type of load cells with external differential reference voltage range from 0.1V to 5V.

loadcell2_click.png

Click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Jan 2020.
  • Type : I2C type

Software Support

We provide a library for the LoadCell2 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 LoadCell2 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void loadcell2_cfg_setup ( loadcell2_cfg_t *cfg );

  • Initialization function.

    LOADCELL2_RETVAL loadcell2_init ( loadcell2_t ctx, loadcell2_cfg_t cfg );

  • Click Default Configuration function.

    void loadcell2_default_cfg ( loadcell2_t *ctx );

Example key functions :

  • Get weight function.

    float loadcell2_get_weight ( loadcell2_t ctx, loadcell2_data_t cell_data );

  • Get results function.

    uint32_t loadcell2_get_result ( loadcell2_t *ctx );

  • Calibration function.

    uint8_t loadcell2_calibration ( loadcell2_t ctx, uint16_t cal_val, loadcell2_data_t cell_data );

Examples Description

Load Cell 2 Click is a weight measurement Click which utilizes a load cell element, in order to precisely measure the weight of an object.

The demo application is composed of two sections :

Application Init

Initializes I2C driver and performs the device reset, and performs the device reset, set power on and default configuration. Sets tare the scale, calibrate scale and start measurements.


void application_init ( void )
{
    log_cfg_t log_cfg;
    loadcell2_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_printf( &logger, "  - Application Init -   \r\n" );

    //  Click initialization.

    loadcell2_cfg_setup( &cfg );
    LOADCELL2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    loadcell2_init( &loadcell2, &cfg );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "     Load cell Click     \r\n");
    log_printf( &logger, "-------------------------\r\n");
    Delay_ms ( 100 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "   Reset all registers   \r\n");
    loadcell2_reset( &loadcell2 );
    Delay_ms ( 100 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "        Power On         \r\n");
    loadcell2_power_on( &loadcell2 );
    Delay_ms ( 100 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "   Set default config.   \r\n");
    loadcell2_default_cfg( &loadcell2 );
    Delay_ms ( 100 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "      Calibrate AFE      \r\n");
    loadcell2_calibrate_afe( &loadcell2 );
    Delay_ms ( 1000 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "     Tare the scale :    \r\n");
    log_printf( &logger, "- - - - - - - - - - - - -\r\n");
    log_printf( &logger, " >> Remove all object << \r\n");
    log_printf( &logger, "- - - - - - - - - - - - -\r\n");
    log_printf( &logger, " In the following 10 sec \r\n");
    log_printf( &logger, " please remove all object\r\n");
    log_printf( &logger, "     from the scale.     \r\n");
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "    Start tare scales    \r\n");
    loadcell2_tare ( &loadcell2, &cell_data );
    Delay_ms ( 500 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "   Tarring is complete   \r\n");
    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "    Calibrate Scale :    \r\n");
    log_printf( &logger, "- - - - - - - - - - - - -\r\n");
    log_printf( &logger, "   >>> Load etalon <<<   \r\n");
    log_printf( &logger, "- - - - - - - - - - - - -\r\n");
    log_printf( &logger, " In the following 10 sec \r\n");
    log_printf( &logger, "place 1000g weight etalon\r\n");
    log_printf( &logger, "    on the scale for     \r\n");
    log_printf( &logger, "   calibration purpose.  \r\n");
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "    Start calibration    \r\n");

    if ( loadcell2_calibration ( &loadcell2, LOADCELL2_WEIGHT_1000G, &cell_data ) == LOADCELL2_GET_RESULT_OK )
    {
        log_printf( &logger, "-------------------------\r\n");
        log_printf( &logger, "    Calibration  Done    \r\n");

        log_printf( &logger, "- - - - - - - - - - - - -\r\n");
        log_printf( &logger, "  >>> Remove etalon <<<  \r\n");
        log_printf( &logger, "- - - - - - - - - - - - -\r\n");
        log_printf( &logger, " In the following 10 sec \r\n");
        log_printf( &logger, "   remove 1000g weight   \r\n");
        log_printf( &logger, "   etalon on the scale.  \r\n");
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
    }
    else
    {
        log_printf( &logger, "-------------------------\r\n");
        log_printf( &logger, "   Calibration  Error   \r\n");
        for ( ; ; );
    }

    log_printf( &logger, "-------------------------\r\n");
    log_printf( &logger, "   Start measurements :  \r\n");
    log_printf( &logger, "-------------------------\r\n");
}

Application Task

This is an example which demonstrates the use of Load Cell 2 Click board. Display the measurement of scales in grams [g]. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on USB uart changes for every 1 sec.


void application_task ( void )
{
    weight_val = loadcell2_get_weight( &loadcell2, &cell_data );

    log_printf(&logger, "   Weight : %5.2f g\r\n", weight_val );

    Delay_ms ( 1000 );
}  

Note

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.LoadCell2

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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