Hall Current 17 Click

Hall Current 17 Click is a compact add-on board that contains a precise solution for AC/DC current sensing. This board features the ACS37010, a high-accuracy current sensor from Allegro MicroSystems. The ACS37010 has a high operating bandwidth of 450kHz and a fast response time of 1.3μs response time. It features a highly isolated compact surface-mount package, low internal primary conductor resistance, low sensitivity error, low offset voltage over temperature, and more.

Click Product page

Click library

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

Software Support

We provide a library for the Hall Current 17 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 from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Hall Current 17 Click driver.

Standard key functions :

• hallcurrent17_cfg_setup Config Object Initialization function.

  void hallcurrent17_cfg_setup ( hallcurrent17_cfg_t *cfg );

• hallcurrent17_init Initialization function.

  err_t hallcurrent17_init ( hallcurrent17_t *ctx, hallcurrent17_cfg_t *cfg );

• hallcurrent17_default_cfg Click Default Configuration function.

  err_t hallcurrent17_default_cfg ( hallcurrent17_t *ctx );

Example key functions :

• hallcurrent17_get_current Hall Current 17 get current function.

  err_t hallcurrent17_get_current ( hallcurrent17_t *ctx, float *current );

• hallcurrent17_get_vout Hall Current 17 get Vout function.

  err_t hallcurrent17_get_vout ( hallcurrent17_t *ctx, float *adc_vout );

• hallcurrent17_get_vref Hall Current 17 get Vref function.

  err_t hallcurrent17_get_vref ( hallcurrent17_t *ctx, float *adc_vref );

Example Description

This example demonstrates the use of Hall Current 17 Click board™ by reading and displaying the current measurements.

The demo application is composed of two sections :

Application Init

The initialization of SPI module and log UART. After driver initialization, the app sets the default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    hallcurrent17_cfg_t hallcurrent17_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.
    hallcurrent17_cfg_setup( &hallcurrent17_cfg );
    HALLCURRENT17_MAP_MIKROBUS( hallcurrent17_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == hallcurrent17_init( &hallcurrent17, &hallcurrent17_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( HALLCURRENT17_ERROR == hallcurrent17_default_cfg ( &hallcurrent17 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

The demo application reads the current measurements [A] and displays the results. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
    static float current = 0.0;
    if ( HALLCURRENT17_OK == hallcurrent17_get_current( &hallcurrent17, &current ) )
    {
        log_printf( &logger, " Current: %.3f [A]\r\n", current );
    }
    log_printf( &logger, " --------------------\r\n" );
    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.HallCurrent17

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. UART terminal is available in all MikroElektronika compilers.