accel29  2.1.0.0
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Accel 29 click

Accel 29 Click is a compact add-on board that contains an acceleration sensor. This board features the ADXL314, a three-axis ±200g accelerometer from Analog Devices. The ADXL314 offers 16-bit digital output data with a configurable host interface that supports SPI and I2C serial communication. An integrated memory management system with a 32-level FIFO buffer can store data to minimize host processor activity and lower overall system power consumption. Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at low power dissipation.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Jan 2023.
  • Type : I2C/SPI type

Software Support

We provide a library for the Accel 29 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 Accel 29 Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of Accel 29 click board by reading and displaying the accelerometer data (X, Y, and Z axis) averaged from 100 samples.

The demo application is composed of two sections :

Application Init

Initializes the driver, performs the click default configuration, and calibrates the accel data offsets.

void application_init ( void )
{
log_cfg_t log_cfg;
accel29_cfg_t accel29_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
accel29_cfg_setup( &accel29_cfg );
ACCEL29_MAP_MIKROBUS( accel29_cfg, MIKROBUS_1 );
err_t init_flag = accel29_init( &accel29, &accel29_cfg );
if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( ACCEL29_ERROR == accel29_default_cfg ( &accel29 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
accel29_axes_t calib_axes;
calib_axes.x = ACCEL29_CALIB_X;
calib_axes.y = ACCEL29_CALIB_Y;
calib_axes.z = ACCEL29_CALIB_Z;
if ( ACCEL29_ERROR == accel29_calibrate_offset ( &accel29, calib_axes ) )
{
log_error( &logger, " Calibrate offset." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reads and displays on the USB UART the accelerometer data (X, Y, and Z axis) averaged from 100 samples.

void application_task ( void )
{
{
log_printf( &logger, " X: %.1f g\r\n", axes.x );
log_printf( &logger, " Y: %.1f g\r\n", axes.y );
log_printf( &logger, " Z: %.1f g\r\n\n", axes.z );
}
}

Note

This click board should be used for high g applications of up to +-200g. It is not recommended for low g applications because of its high scale factor which is about 48.83 mg per LSB.

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.Accel29

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.


ACCEL29_CALIB_Y
#define ACCEL29_CALIB_Y
Definition: main.c:38
accel29_get_avg_axes
err_t accel29_get_avg_axes(accel29_t *ctx, uint16_t num_samples, accel29_axes_t *avg_axes)
Accel 29 get avg axes function.
accel29_cfg_setup
void accel29_cfg_setup(accel29_cfg_t *cfg)
Accel 29 configuration object setup function.
accel29_s
Accel 29 Click context object.
Definition: accel29.h:274
application_task
void application_task(void)
Definition: main.c:91
accel29_axes_t
Accel 29 Click Axes data structure.
Definition: accel29.h:321
accel29_default_cfg
err_t accel29_default_cfg(accel29_t *ctx)
Accel 29 default configuration function.
ACCEL29_CALIB_X
#define ACCEL29_CALIB_X
Definition: main.c:37
accel29_cfg_t
Accel 29 Click configuration object.
Definition: accel29.h:295
accel29_axes_t::z
float z
Definition: accel29.h:324
ACCEL29_ERROR
@ ACCEL29_ERROR
Definition: accel29.h:335
accel29_axes_t::y
float y
Definition: accel29.h:323
application_init
void application_init(void)
Definition: main.c:44
ACCEL29_NUM_OF_SAMPLES
#define ACCEL29_NUM_OF_SAMPLES
Accel 29 number of data samples for averaging.
Definition: accel29.h:194
accel29_axes_t::x
float x
Definition: accel29.h:322
accel29_init
err_t accel29_init(accel29_t *ctx, accel29_cfg_t *cfg)
Accel 29 initialization function.
ACCEL29_OK
@ ACCEL29_OK
Definition: accel29.h:334
ACCEL29_MAP_MIKROBUS
#define ACCEL29_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: accel29.h:239
ACCEL29_CALIB_Z
#define ACCEL29_CALIB_Z
Definition: main.c:39
accel29_calibrate_offset
err_t accel29_calibrate_offset(accel29_t *ctx, accel29_axes_t calib_axes)
Accel 29 calibrate offset function.