airmotion  2.1.0.0
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Air Motion click

Air Motion Click is a compact add-on board that contains a 6-axis inertial measurement unit. This board features TDK InvenSense’s ICM-40627, a 6-axis MEMS MotionTracking™ device that combines a 3-axis user-selectable gyroscope accelerometer.

click Product page


Click library

  • Author : Stefan Ilic
  • Date : Dec 2022.
  • Type : I2C/SPI type

Software Support

We provide a library for the Air Motion 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 Air Motion Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of Air Motion Click board.

The demo application is composed of two sections :

Application Init

Initializes the driver after that resets the device and performs default configuration and reads the device id.

void application_init ( void )
{
log_cfg_t log_cfg;
airmotion_cfg_t airmotion_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
airmotion_cfg_setup( &airmotion_cfg );
AIRMOTION_MAP_MIKROBUS( airmotion_cfg, MIKROBUS_1 );
err_t init_flag = airmotion_init( &airmotion, &airmotion_cfg );
if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( AIRMOTION_OK != airmotion_default_cfg ( &airmotion ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
uint8_t id = 0;
log_printf( &logger, " WHO AM I = 0X%.2X\r\n", (uint16_t)id );
#if defined TAP_DETECTION_MODE
log_printf( &logger, " Tap Detection Mode \r\n" );
#endif
}

Application Task

When the device is in Tap Detection Mode, Air Motion Click board will read and display the direction, axis, and number of taps that it detected. If Tap Detection mode is disabled, the device will read accel, gyro, and temperature data.

void application_task ( void )
{
if ( airmotion_get_int1_state( &airmotion) )
{
#if defined TAP_DETECTION_MODE
uint8_t tap_num;
uint8_t tap_axis;
uint8_t tap_dir;
airmotion_get_tap_detection( &airmotion, &tap_num, &tap_axis, &tap_dir );
if ( AIRMOTION_TAP_SINGLE == tap_num )
{
log_printf( &logger, " SINGLE TAP" );
}
else
{
log_printf( &logger, " DOUBLE TAP" );
}
if ( AIRMOTION_TAP_DIR_POSITIVE == tap_dir )
{
log_printf( &logger, " IN POSITIVE" );
}
else
{
log_printf( &logger, " IN NEGATIVE" );
}
if ( AIRMOTION_TAP_AXIS_X == tap_axis )
{
log_printf( &logger, " X AXIS DIRECTION \r\n" );
}
else if ( AIRMOTION_TAP_AXIS_Y == tap_axis )
{
log_printf( &logger, " Y AXIS DIRECTION \r\n" );
}
else
{
log_printf( &logger, " Z AXIS DIRECTION \r\n" );
}
#else
airmotion_data_t accel_data;
airmotion_data_t gyro_data;
float temp_data;
uint32_t tmst_data;
airmotion_get_data_from_register( &airmotion, &temp_data, &accel_data, &gyro_data, &tmst_data );
log_printf( &logger, " TEMP: %.2f \r\n", temp_data );
log_printf( &logger, " GYRO: x:%d y:%d z:%d \r\n", gyro_data.data_x,gyro_data.data_y,gyro_data.data_z );
log_printf( &logger, " ACCEL: x:%d y:%d z:%d \r\n", accel_data.data_x,accel_data.data_y,accel_data.data_z );
log_printf( &logger, "========================== \r\n" );
Delay_ms ( 1000 );
#endif
}
}

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.AirMotion

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.


airmotion_get_int1_state
uint8_t airmotion_get_int1_state(airmotion_t *ctx)
Air Motion read INT1 pin state function.
airmotion_default_cfg
err_t airmotion_default_cfg(airmotion_t *ctx)
Air Motion default configuration function.
airmotion_get_data_from_register
err_t airmotion_get_data_from_register(airmotion_t *ctx, float *temperature_data, airmotion_data_t *accel_data, airmotion_data_t *gyro_data, uint32_t *tmst_data)
Air Motion read data function.
airmotion_data_t
Definition: airmotion.h:828
AIRMOTION_TAP_AXIS_Y
#define AIRMOTION_TAP_AXIS_Y
Definition: airmotion.h:261
airmotion_set_basic_tap_detection
err_t airmotion_set_basic_tap_detection(airmotion_t *ctx)
Air Motion basic tap detection configuration function.
airmotion_set_reg_bank
err_t airmotion_set_reg_bank(airmotion_t *ctx, uint8_t bank)
Air Motion set register bank function.
AIRMOTION_BANK0_SEL
#define AIRMOTION_BANK0_SEL
Air Motion description setting.
Definition: airmotion.h:220
application_task
void application_task(void)
Definition: main.c:79
airmotion_init
err_t airmotion_init(airmotion_t *ctx, airmotion_cfg_t *cfg)
Air Motion initialization function.
airmotion_s
Air Motion Click context object.
Definition: airmotion.h:783
AIRMOTION_TAP_SINGLE
#define AIRMOTION_TAP_SINGLE
Definition: airmotion.h:257
AIRMOTION_TAP_AXIS_X
#define AIRMOTION_TAP_AXIS_X
Definition: airmotion.h:260
airmotion_data_t::data_x
int16_t data_x
Definition: airmotion.h:829
airmotion_get_tap_detection
err_t airmotion_get_tap_detection(airmotion_t *ctx, uint8_t *tap_num, uint8_t *tap_axis, uint8_t *tap_dir)
Air Motion get tap detection data function.
AIRMOTION_OK
@ AIRMOTION_OK
Definition: airmotion.h:842
AIRMOTION_MAP_MIKROBUS
#define AIRMOTION_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: airmotion.h:748
AIRMOTION_WHO_AM_I
#define AIRMOTION_WHO_AM_I
Definition: airmotion.h:137
airmotion_reg_read
err_t airmotion_reg_read(airmotion_t *ctx, uint8_t reg_bank, uint8_t reg, uint8_t *data_out, uint8_t len)
Air Motion data reading function.
AIRMOTION_TAP_DIR_POSITIVE
#define AIRMOTION_TAP_DIR_POSITIVE
Definition: airmotion.h:264
airmotion_data_t::data_z
int16_t data_z
Definition: airmotion.h:831
airmotion_data_t::data_y
int16_t data_y
Definition: airmotion.h:830
application_init
void application_init(void)
Definition: main.c:32
airmotion_sw_reset
err_t airmotion_sw_reset(airmotion_t *ctx)
Air Motion software reset function.
airmotion_cfg_setup
void airmotion_cfg_setup(airmotion_cfg_t *cfg)
Air Motion configuration object setup function.
airmotion_cfg_t
Air Motion Click configuration object.
Definition: airmotion.h:806