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mikroSDK Library

Magneto 7 click

Rating:

5

Author: MikroElektronika Team

Last Updated: 2019-04-24

Category: Magnetic

Downloaded: 71 times

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License: MIT license  

Magneto 7 Click is a high-resolution magnetic sensor Click board which allows contactless orientation sensing.

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mikroSDK Library Blog

Magneto 7 click

Magneto 7 click

Native view of the Magneto 7 click board.

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Magneto 7 click

Magneto 7 click

Front and back view of the Magneto 7 click board.

View full image

Library Description

Library contains functions for getting temperature and humidity. Library contains functions for getting and setting user register. Library contains functions for changing resolution and soft reset. Library contains functions for enabling/disabling heater and OTP.

Key functions:

  • uint8_t magneto7_intGet( void ) - returns INT pin state.
  • void magneto7_get_data( int16_t * x_axis, int16_t * y_axis, int16_t * z_axis ) - gets data register values and sorts thair content into signed 16bit values.
  • float magneto7_convert_to_uT( int16_t raw_data, uint8_t sensor_resolution ) - converts raw data by dividing raw data with 6 or 24 for 12bit or 14bit data.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes I2C module, LOG module and INT pin .
  • Application Initialization - Initializes I2C driver and device .
  • Application Task - Waits for INT pin to go LOW, gets raw data, converts it to uT and logs results.
void applicationTask( )
{
    int_status = magneto7_intGet( );
    
    if (int_status == 0)
    {
        magneto7_get_data( &data_x, &data_y, &data_z );
        
        converted_data = magneto7_convert_to_uT( data_x, _MAGNETO7_SENSOR_RES_14_BIT );
        FloatToStr( converted_data, text );
        magneto7_floatCut( );
        mikrobus_logWrite( "> X Axis : ", _LOG_TEXT );
        mikrobus_logWrite( text, _LOG_TEXT );
        mikrobus_logWrite( " [uT]", _LOG_LINE );
        
        converted_data = magneto7_convert_to_uT( data_y, _MAGNETO7_SENSOR_RES_14_BIT );
        FloatToStr( converted_data, text );
        magneto7_floatCut( );
        mikrobus_logWrite( "> Y Axis : ", _LOG_TEXT );
        mikrobus_logWrite( text, _LOG_TEXT );
        mikrobus_logWrite( " [uT]", _LOG_LINE );
        
        converted_data = magneto7_convert_to_uT( data_z, _MAGNETO7_SENSOR_RES_14_BIT );
        FloatToStr( converted_data, text );
        magneto7_floatCut( );
        mikrobus_logWrite( "> Z Axis : ", _LOG_TEXT );
        mikrobus_logWrite( text, _LOG_TEXT );
        mikrobus_logWrite( " [uT]", _LOG_LINE );
        
        mikrobus_logWrite( " ", _LOG_LINE );

        Delay_ms(300);
    }
}

Additional Functions :

  • magneto7_floatCut() - Rounds float number converted to string to two decimals

Other Mikroe Libraries used in the example:

  • I2C
  • UART
  • Conversions

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB 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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