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mikroSDK Library

Gyro 4 click

Rating:

5

Author: MIKROE

Last Updated: 2019-07-31

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Motion

Downloaded: 3038 times

Not followed.

License: MIT license  

Gyro 4 Click is a two-axis MEMS gyroscope for optical image stabilization applications. It is equipped with the L20G20IS, that includes a sensing element and an IC interface capable of providing the measured angular rate to the application through an SPI digital interface.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Gyro 4 click

Gyro 4 click

Native view of the Gyro 4 click board.

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Gyro 4 click

Gyro 4 click

Front and back view of the Gyro 4 click board.

View full image

Library Description

Library contains function for getting INT pin state Library contains function for setting CS pin state Library contains function for getting register values Library contains function for setting register values Library contains function for device initialization Library contains function for getting temperature value Library contains function for getting axes values Library contains function for software reset Library contains functions for setting power mode and full scale range

Key functions:

  • uint8_t gyro4_initialize( void ) - initializes the device.
  • uint8_t gyro4_get_temperature( float * temperature ) - gets values of temperature registers and convets those values to [deg C].
  • uint8_t gyro4_get_axes( float * x_axis, float * y_axis ) - gets values from axes registers and converts those values to [deg/s].

Examples description

The application is composed of three sections :

  • System Initialization - Initalizes GPIO pins, SPI and LOG modules
  • Application Initialization - Initializes SPI driver
  • Application Task - Checks for data ready interrupt, gets axes and temperature data and logs those values
void applicationTask( )
{
    int_flag = gyro4_intGet( );
    while (int_flag == 1)
    {
        int_flag = gyro4_intGet( );
    }
    
    gyro4_get_temperature( &die_temperature );
    gyro4_get_axes( &x_axis, &y_axis );

    mikrobus_logWrite( " ", _LOG_LINE );

    FloatToStr( die_temperature, text );
    gyro4_floatCut( );
    mikrobus_logWrite( "> Die temperature : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( degrees_celsius, _LOG_LINE );

    FloatToStr( x_axis, text );
    gyro4_floatCut( );
    mikrobus_logWrite( "> X axis : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( degrees_per_second, _LOG_LINE );

    FloatToStr( y_axis, text );
    gyro4_floatCut( );
    mikrobus_logWrite( "> Y axis : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( degrees_per_second, _LOG_LINE );

    Delay_ms(500);
}


Additional Functions :

  • gyro4_floatCut() - Rounds float number to two decimals

Other mikroE Libraries used in the example:

  • SPI
  • 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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