Hall Current 10 Click

Hall Current 10 Click is a compact add-on board that provides economical and precise AC or DC current sensing solutions. This board features the ACHS-7194, a fully integrated Hall-effect-based isolated linear current sensor designed for the current range of ±40A from Broadcom Limited. Inside ACHS-7194 is a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field that the differential Hall sensors convert into a proportional voltage, where after that, the user is given the option to process the output voltage as an analog or digital value. This Click board™ is suitable for AC or DC current-sensing in industrial, commercial, and communications systems.

Click Product page

Click library

• Author : Nenad Filipovic
• Date : Jun 2021.
• Type : I2C type

Software Support

We provide a library for the HallCurrent10 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 HallCurrent10 Click driver.

Standard key functions :

• hallcurrent10_cfg_setup Config Object Initialization function.

  void hallcurrent10_cfg_setup ( hallcurrent10_cfg_t *cfg );

• hallcurrent10_init Initialization function.

  err_t hallcurrent10_init ( hallcurrent10_t *ctx, hallcurrent10_cfg_t *cfg );

• hallcurrent10_default_cfg Click Default Configuration function.

  void hallcurrent10_default_cfg ( hallcurrent10_t *ctx );

Example key functions :

• hallcurrent10_read_adc Hall Current 10 I2C ADC reading function.

  err_t hallcurrent10_read_adc ( hallcurrent10_t *ctx, uint16_t *read_adc );

• hallcurrent10_get_adc_volatge Hall Current 10 get ADC voltage function.

  err_t hallcurrent10_get_adc_voltage ( hallcurrent10_t *ctx, float *adc_vtg );

• hallcurrent10_get_current Hall Current 10 get current function.

  err_t hallcurrent10_get_current ( hallcurrent10_t *ctx, float *current );

Example Description

This library contains API for Hall Current 10 Click driver. The demo application reads ADC value, ADC voltage and current value.

The demo application is composed of two sections :

Application Init

Initializes I2C driver and log UART. After driver initialization the app set default settings.

void application_init ( void ) 
{
    log_cfg_t log_cfg;                      /**< Logger config object. */
    hallcurrent10_cfg_t hallcurrent10_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.
    hallcurrent10_cfg_setup( &hallcurrent10_cfg );
    HALLCURRENT10_MAP_MIKROBUS( hallcurrent10_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == hallcurrent10_init( &hallcurrent10, &hallcurrent10_cfg ) ) 
    {
        log_info( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 100 );
}

Application Task

This is an example that demonstrates the use of the Hall Current 10 Click board™. In this example, we read and display the ADC values and current ( mA ) data. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void ) 
{
    hallcurrent10_read_adc( &hallcurrent10, &adc_data );
    log_printf( &logger, " ADC Value   : %d \r\n", adc_data );
    Delay_ms ( 100 );

    hallcurrent10_get_adc_voltage( &hallcurrent10, &adc_voltage );
    log_printf( &logger, " ADC Voltage : %.2f mV \r\n", adc_voltage );
    log_printf( &logger, "- - - - - - - - - - -  - -\r\n" );
    Delay_ms ( 100 );

    hallcurrent10_get_current ( &hallcurrent10, &current );
    log_printf( &logger, " Current     : %.2f mA \r\n", current );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 1000 );
    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.HallCurrent10

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.