accel18  2.0.0.0
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Accel 18 click

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[click Product page](<CLICK_PRODUCT_PAGE_LINK>)


Click library

  • Author : Luka Filipovic
  • Date : Aug 2021.
  • Type : I2C/SPI type

Software Support

We provide a library for the Accel18 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 Accel18 Click driver.

Standard key functions :

Example key functions :

Example Description

This example application showcases ability of the device

to read axes values on detected interrupt, and check detected motion.

The demo application is composed of two sections :

Application Init

Initialization of comunication modules(SPI/I2C, UART) and additional

two interrupt pins. Then configures device and sets 8g range and 25 data rate, with interrupt enabled.

void application_init ( void )
{
log_cfg_t log_cfg;
accel18_cfg_t accel18_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
accel18_cfg_setup( &accel18_cfg );
ACCEL18_MAP_MIKROBUS( accel18_cfg, MIKROBUS_1 );
err_t init_flag = accel18_init( &accel18, &accel18_cfg );
if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
if ( accel18_default_cfg ( &accel18 ) )
{
log_error( &logger, " Default configuration. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Whenever interrupt is detected checks interrupt status for motion

detection, and then reads x, y, and z axes, calculates value and logs result.

void application_task ( void )
{
if ( !accel18_get_interrupt_1( &accel18 ) )
{
//Interrupt detected check
uint8_t int_flag = 0;
uint8_t interrupt_state = 0;
accel18_byte_read( &accel18, ACCEL18_REG_INTERRUPT_STATUS, &interrupt_state );
if ( interrupt_state & ACCEL18_INT_TILT_EN )
{
int_flag++;
log_printf( &logger, ">Tilt<\t" );
}
if ( interrupt_state & ACCEL18_INT_FLIP_EN )
{
int_flag++;
log_printf( &logger, ">Flip<\t" );
}
if ( interrupt_state & ACCEL18_INT_SHAKE_EN )
{
int_flag++;
log_printf( &logger, ">Shake<\t" );
}
if ( int_flag )
{
log_printf( &logger, "\r\n" );
}
//Axis read
accel18_axes_t axes_data;
accel18_read_axes( &accel18, &axes_data );
log_printf( &logger, " > X[g]: %.2f\r\n", axes_data.x );
log_printf( &logger, " > Y[g]: %.2f\r\n", axes_data.y );
log_printf( &logger, " > Z[g]: %.2f\r\n", axes_data.z );
log_printf( &logger, "**************************\r\n" );
Delay_ms( 300 );
}
}

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.Accel18

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.


ACCEL18_INT_SHAKE_EN
#define ACCEL18_INT_SHAKE_EN
Definition: accel18.h:133
accel18_init
err_t accel18_init(accel18_t *ctx, accel18_cfg_t *cfg)
Accel 18 initialization function.
accel18_cfg_setup
void accel18_cfg_setup(accel18_cfg_t *cfg)
Accel 18 configuration object setup function.
accel18_set_range
err_t accel18_set_range(accel18_t *ctx, uint8_t range_macro)
Set range configuration.
application_task
void application_task(void)
Definition: main.c:73
ACCEL18_INT_FLIP_EN
#define ACCEL18_INT_FLIP_EN
Definition: accel18.h:131
accel18_axes_t::z
float z
Definition: accel18.h:314
accel18_cfg_t
Accel 18 Click configuration object.
Definition: accel18.h:285
accel18_default_cfg
err_t accel18_default_cfg(accel18_t *ctx)
Accel 18 default configuration function.
ACCEL18_INT_TILT_EN
#define ACCEL18_INT_TILT_EN
Accel 18 interrupt setting.
Definition: accel18.h:130
ACCEL18_REG_INTERRUPT_STATUS
#define ACCEL18_REG_INTERRUPT_STATUS
Definition: accel18.h:76
ACCEL18_MAP_MIKROBUS
#define ACCEL18_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: accel18.h:227
accel18_read_axes
err_t accel18_read_axes(accel18_t *ctx, accel18_axes_t *axes_data)
Accel data reading.
accel18_byte_read
err_t accel18_byte_read(accel18_t *ctx, uint8_t reg, uint8_t *data_out)
Accel 18 byte reading function.
accel18_s
Accel 18 Click context object.
Definition: accel18.h:262
accel18_axes_t
Accel 18 Click axes data.
Definition: accel18.h:311
accel18_axes_t::y
float y
Definition: accel18.h:313
application_init
void application_init(void)
Definition: main.c:33
accel18_axes_t::x
float x
Definition: accel18.h:312
accel18_get_interrupt_1
uint8_t accel18_get_interrupt_1(accel18_t *ctx)
Get interrupt 1 pin state.