accel19  2.0.0.0
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Accel 19 click

Accel 19 Click is a compact add-on board that contains an acceleration sensor. This board features the LIS2DTW12, an ultra-low-power high-performance three-axis accelerometer from STMicroelectronics. It allows selectable full-scale acceleration measurements in ranges of ±2g, ±4g, ±8g, or ±16g in three axes with a configurable host interface that supports both SPI and I2C serial communication. Alongside an embedded 0.8°C accuracy temperature sensor with ODRs ranging from 50 to 1.6Hz and resolution from 8 to 12 bits, it has a dedicated internal engine to process motion and acceleration detection.

click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Nov 2021.
  • Type : I2C/SPI type

Software Support

We provide a library for the Accel 19 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 19 Click driver.

Standard key functions :

Example key functions :

Example Description

This library contains API for Accel 19 Click driver. The library initializes and defines the I2C or SPI bus drivers to write and read data from registers. The library also includes a function for reading X-axis, Y-axis, and Z-axis data.

The demo application is composed of two sections :

Application Init

The initialization of I2C or SPI module, log UART, and additional pins. After the driver init, the app executes a default configuration and checks communication and device ID.

void application_init ( void )
{
log_cfg_t log_cfg;
accel19_cfg_t accel19_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
accel19_cfg_setup( &accel19_cfg );
ACCEL19_MAP_MIKROBUS( accel19_cfg, MIKROBUS_1 );
err_t init_flag = accel19_init( &accel19, &accel19_cfg );
if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
Delay_ms( 1000 );
if ( ACCEL19_ERROR == accel19_default_cfg ( &accel19 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
if ( ACCEL19_ERROR == accel19_check_device_id( &accel19 ) )
{
log_printf( &logger, " Communication ERROR \r\n" );
log_printf( &logger, " Reset the device \r\n" );
log_printf( &logger, "-------------------------\r\n" );
for ( ; ; );
}
log_info( &logger, " Application Task " );
log_printf( &logger, "-------------------------\r\n" );
Delay_ms( 1000 );
}

Application Task

This is an example that demonstrates the use of the Accel 19 Click board™. Measures and displays acceleration data for X-axis, Y-axis, and Z-axis. Results are being sent to the USART terminal where the user can track their changes. This task repeats every 1 sec.

void application_task ( void )
{
static accel19_axis_t axis;
{
accel19_get_axis_data( &accel19, &axis );
log_printf( &logger, "\tX : %5d \r\n\tY : %5d \r\n\tZ : %5d \r\n", axis.x, axis.y, axis.z );
log_printf( &logger, "-------------------------\r\n" );
Delay_ms( 1000 );
}
Delay_ms( 1 );
}

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.Accel19

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.


accel19_axis_t
Accel 19 axis data structure.
Definition: accel19.h:312
ACCEL19_STATUS_DRDY
#define ACCEL19_STATUS_DRDY
Definition: accel19.h:172
accel19_axis_t::x
int16_t x
Definition: accel19.h:313
accel19_check_device_id
err_t accel19_check_device_id(accel19_t *ctx)
Accel 19 check device ID function.
application_task
void application_task(void)
Definition: main.c:84
accel19_cfg_t
Accel 19 Click configuration object.
Definition: accel19.h:285
accel19_default_cfg
err_t accel19_default_cfg(accel19_t *ctx)
Accel 19 default configuration function.
accel19_axis_t::z
int16_t z
Definition: accel19.h:315
accel19_data_ready
uint8_t accel19_data_ready(accel19_t *ctx)
Accel 19 data ready function.
accel19_init
err_t accel19_init(accel19_t *ctx, accel19_cfg_t *cfg)
Accel 19 initialization function.
ACCEL19_MAP_MIKROBUS
#define ACCEL19_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: accel19.h:229
accel19_cfg_setup
void accel19_cfg_setup(accel19_cfg_t *cfg)
Accel 19 configuration object setup function.
accel19_s
Accel 19 Click context object.
Definition: accel19.h:264
application_init
void application_init(void)
Definition: main.c:35
ACCEL19_ERROR
@ ACCEL19_ERROR
Definition: accel19.h:326
accel19_set_control
err_t accel19_set_control(accel19_t *ctx, uint8_t odr, uint8_t op_mode, uint8_t lp_mode)
Accel 19 set control function.
accel19_get_axis_data
err_t accel19_get_axis_data(accel19_t *ctx, accel19_axis_t *axis)
Accel 19 get accelerometer axis function.
accel19_axis_t::y
int16_t y
Definition: accel19.h:314