Magneto 11 Click

Magneto 11 Click is a compact add-on board that contains an accurate and reliable magnetic sensing device. This board features the AS5510, a linear hall sensor with 10-bit resolution, and an I2C interface from ams AG. It can measure the absolute position of lateral movement of a simple 2-pole magnet. A lateral stroke of 0.5mm ~ 2mm can be measured with air gaps around 1.0mm, depending on the magnet size. The AS5510 may be switched to a Power-Down state when it is not used to conserve power. This Click board™ is suitable for position sensing applications requiring a small magnetic range where noise is a critical design parameter.

Click Product page

Click library

• Author : Stefan Filipovic
• Date : Jan 2022.
• Type : I2C type

Software Support

We provide a library for the Magneto 11 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 Magneto 11 Click driver.

Standard key functions :

• magneto11_cfg_setup Config Object Initialization function.

  void magneto11_cfg_setup ( magneto11_cfg_t *cfg );

• magneto11_init Initialization function.

  err_t magneto11_init ( magneto11_t *ctx, magneto11_cfg_t *cfg );

• magneto11_default_cfg Click Default Configuration function.

  err_t magneto11_default_cfg ( magneto11_t *ctx );

Example key functions :

• magneto11_get_magnetic_field This function reads the magnetic field strength in milliTesla.

  err_t magneto11_get_magnetic_field ( magneto11_t *ctx, float *mag_field );

• magneto11_set_sensitivity This function writes specified data to the sensitivity register.

  err_t magneto11_set_sensitivity ( magneto11_t *ctx, uint8_t sensitivity );

• magneto11_set_config This function writes specified data to the config register.

  err_t magneto11_set_config ( magneto11_t *ctx, uint8_t config );

Example Description

This example demonstrates the use of Magneto 11 Click board by reading and displaying the magnetic field strength value.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    magneto11_cfg_t magneto11_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.
    magneto11_cfg_setup( &magneto11_cfg );
    MAGNETO11_MAP_MIKROBUS( magneto11_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == magneto11_init( &magneto11, &magneto11_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( MAGNETO11_ERROR == magneto11_default_cfg ( &magneto11 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

Reads the magnetic field strength value in milliTesla and displays the results on the USB UART every 200ms approximately.

void application_task ( void )
{
    float magnetic_field;
    if ( MAGNETO11_OK == magneto11_get_magnetic_field ( &magneto11, &magnetic_field ) )
    {
        log_printf ( &logger, " Magnetic Field: %.3f mT \r\n\n", magnetic_field );
        Delay_ms ( 200 );
    }
}

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.Magneto11

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.