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mikroSDK Library

LSM303AGR Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.18

mikroSDK Library: 2.0.0.0

Category: Magnetic

Downloaded: 386 times

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License: MIT license  

LSM303AGR Click is a magnetometer and accelerometer device, capable of sensing both the magnetic and gravitational field along three orthogonal axes. It uses the LSM303AGR from STMicroelectronics, an integrated MEMS IC with plenty of features that allow accurate and reliable sensing, even in presence of foreign objects made of iron and similar materials that exhibit ferromagnetic behavior. An extensive interrupt engine can be programmed to generate an interrupt signal for free-falling events, motion detection, and magnetic field detection. The Click board™ can sense the magnetic field in the range of ±50 G (gauss) and ±2g, ±4g, ±8g, and ±16g selectable ranges for the full-scale acceleration detection (gravity force).

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


LSM303AGR Click

LSM303AGR Click is a magnetometer and accelerometer device, capable of sensing both the magnetic and gravitational field along three orthogonal axes. It uses the LSM303AGR from STMicroelectronics, an integrated MEMS IC with plenty of features that allow accurate and reliable sensing.

lsm303agr_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Dec 2019.
  • Type : I2C type

Software Support

We provide a library for the LSM303AGR 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for LSM303AGR Click driver.

Standard key functions :

  • Config Object Initialization function.

    void lsm303agr_cfg_setup ( lsm303agr_cfg_t *cfg );

  • Initialization function.

    LSM303AGR_RETVAL lsm303agr_init ( lsm303agr_t ctx, lsm303agr_cfg_t cfg );

  • Click Default Configuration function.

    void lsm303agr_default_cfg ( lsm303agr_t *ctx );

Example key functions :

  • Reading the raw X axis data and calculating the value

    float lsm303agr_get_acc_axis_x ( lsm303agr_t *ctx );

  • Reading the raw X axis data and calculating the value

    float lsm303agr_get_mag_axis_x ( lsm303agr_t *ctx );

  • Reading the raw Y axis data and calculating the value

    float lsm303agr_get_mag_axis_y ( lsm303agr_t *ctx );

Examples Description

This demo example returns magnetic and acceleration values from the LSM303AGR sensor.

The demo application is composed of two sections :

Application Init

Driver initialization and setting operating modes of accelerometer and magnetometer.


void application_init ( void )
{
    log_cfg_t log_cfg;
    lsm303agr_cfg_t cfg;

    /** 
     * 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.

    lsm303agr_cfg_setup( &cfg );
    LSM303AGR_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    lsm303agr_init( &lsm303agr, &cfg );
    lsm303agr_default_cfg ( &lsm303agr );

}

Application Task

Reading accelerometer and magnetometer axis X,Y,Z and displaying it on terminal.


void application_task ( void )
{
    //  Task implementation.

    log_printf(&logger, "======== Accelerometer data ========\r\n");

    read_data = lsm303agr_get_acc_axis_x ( &lsm303agr );
    log_printf(&logger, "X Axis : %f\r\n", read_data);

    read_data = lsm303agr_get_acc_axis_y ( &lsm303agr );
    log_printf(&logger, "Y Axis : %f\r\n", read_data);

    read_data = lsm303agr_get_acc_axis_z ( &lsm303agr );
    log_printf(&logger, "Z Axis : %f\r\n", read_data);

    log_printf(&logger, "======== Mangetometer data ========\r\n");

    read_data = lsm303agr_get_mag_axis_x ( &lsm303agr );
    log_printf(&logger, "X Axis : %f\r\n", read_data);

    read_data = lsm303agr_get_mag_axis_y ( &lsm303agr );
    log_printf(&logger, "Y Axis : %f\r\n", read_data);

    read_data = lsm303agr_get_mag_axis_z ( &lsm303agr );
    log_printf(&logger, "Z Axis : %f\r\n", read_data);

    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.LSM303AGR

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. 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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