magaccel  2.1.0.0
Main Page

MagAccel click

Mag&Accel Click is a compact add-on board representing a moving object and magnetic switch as a single solution. This board features the NMH1000, a Hall-effect magnetic field switch, and the FXLS8974CF, a 3-axis low-g accelerometer, both from NXP Semiconductor.

click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Nov 2023.
  • Type : I2C type

Software Support

We provide a library for the MagAccel 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 MagAccel Click driver.

Standard key functions :

Example key functions :

Example Description

This library contains API for the Mag&Accel Click driver. The library initializes and defines the I2C drivers to write and read data from registers, as well as the default configuration for reading accelerator data.

The demo application is composed of two sections :

Application Init

The initialization of the I2C module, log UART, and additional pins. After the driver init, the app executes a default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
magaccel_cfg_t magaccel_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
magaccel_cfg_setup( &magaccel_cfg );
MAGACCEL_MAP_MIKROBUS( magaccel_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == magaccel_init( &magaccel, &magaccel_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( MAGACCEL_ERROR == magaccel_default_cfg ( &magaccel ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
log_printf( &logger, "_________________\r\n" );
}

Application Task

This example demonstrates the use of the Mag&Accel Click board. Measures and displays acceleration data for the X-axis, Y-axis, and Z-axis and the presence of a magnetic field. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
{
magaccel_axes_t acc_axis;
magaccel_get_axes_data( &magaccel, &acc_axis );
{
log_printf( &logger, " Presence of a magnetic field\r\n" );
log_printf( &logger, "_________________\r\n" );
}
log_printf( &logger, " Accel X: %.2f mg\r\n", acc_axis.x );
log_printf( &logger, " Accel Y: %.2f mg\r\n", acc_axis.y );
log_printf( &logger, " Accel Z: %.2f mg\r\n", acc_axis.z );
log_printf( &logger, "_________________\r\n" );
Delay_ms ( 100 );
}
}

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.MagAccel

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.


magaccel_set_op_mode
err_t magaccel_set_op_mode(magaccel_t *ctx, uint8_t op_mode)
MagAccel set operating mode function.
magaccel_axes_t
MagAccel Click axes data.
Definition: magaccel.h:276
magaccel_cfg_t
MagAccel Click configuration object.
Definition: magaccel.h:259
MAGACCEL_MAP_MIKROBUS
#define MAGACCEL_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: magaccel.h:224
MAGACCEL_DET_MAG_FIELD
#define MAGACCEL_DET_MAG_FIELD
Definition: magaccel.h:189
magaccel_check_mag_field
uint8_t magaccel_check_mag_field(magaccel_t *ctx)
MagAccel checks the magnetic field function.
application_task
void application_task(void)
Definition: main.c:71
magaccel_init
err_t magaccel_init(magaccel_t *ctx, magaccel_cfg_t *cfg)
MagAccel initialization function.
magaccel_default_cfg
err_t magaccel_default_cfg(magaccel_t *ctx)
MagAccel default configuration function.
magaccel_axes_t::z
float z
Definition: magaccel.h:279
magaccel_cfg_setup
void magaccel_cfg_setup(magaccel_cfg_t *cfg)
MagAccel configuration object setup function.
MAGACCEL_DATA_READY
#define MAGACCEL_DATA_READY
MagAccel data-ready and magnetic field detection data values.
Definition: magaccel.h:188
application_init
void application_init(void)
Definition: main.c:34
magaccel_get_axes_data
err_t magaccel_get_axes_data(magaccel_t *ctx, magaccel_axes_t *axes)
MagAccel get the accel sensor axes function.
MAGACCEL_ERROR
@ MAGACCEL_ERROR
Definition: magaccel.h:290
magaccel_axes_t::x
float x
Definition: magaccel.h:277
magaccel_t
MagAccel Click context object.
Definition: magaccel.h:238
magaccel_check_data_ready
uint8_t magaccel_check_data_ready(magaccel_t *ctx)
MagAccel get data ready function.
magaccel_axes_t::y
float y
Definition: magaccel.h:278