mpuimu  2.0.0.0
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MPU IMU click

MPU IMU Click carries the integrated 6-axis motion tracking device that combines 3-axis gyroscope and accelerometer.

click Product page


Click library

  • Author : Mihajlo Djordjevic
  • Date : Dec 2019.
  • Type : I2C/SPI type

Software Support

We provide a library for the MpuImu 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for MpuImu Click driver.

Standard key functions :

  • Config Object Initialization function.

    void mpuimu_cfg_setup ( mpuimu_cfg_t *cfg );

  • Initialization function.

    MPUIMU_RETVAL mpuimu_init ( mpuimu_t *ctx, mpuimu_cfg_t *cfg );

  • Click Default Configuration function.

    void mpuimu_default_cfg ( mpuimu_t *ctx );

Example key functions :

  • This function read Accel X-axis, Y-axis and Z-axis.

    void mpuimu_read_accel ( mpuimu_t *ctx, mpuimu_accel_data_t *accel_data );

  • This function read Gyro X-axis, Y-axis and Z-axis.

    void mpuimu_read_gyro ( mpuimu_t *ctx, mpuimu_gyro_data_t *gyro_data );

  • This function reads temperature data.

    float mpuimu_read_temperature ( mpuimu_t *ctx );

Examples Description

Example code performs acceleration, angular rate (gyroscopic), and temperature measurement.

The demo application is composed of two sections :

Application Init

Application Init performs Logger and Click initialization.

void application_init ( void )
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
Delay_ms ( 100 );
// Click initialization.
MPUIMU_MAP_MIKROBUS( cfg, MIKROBUS_1 );
mpuimu_init( &mpuimu, &cfg );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " ---- MPU IMU Click ----\r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
mpuimu_default_cfg ( &mpuimu );
Delay_ms ( 1000 );
log_printf( &logger, " ---- Initialization ---\r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
}

Application Task

Measured Accel and Gyro coordinates (X,Y,Z) and Temperature in degrees C which are being sent to the UART where you can track their changes. All data logs on USB UART for every 1 sec.

void application_task ( void )
{
Delay_ms ( 100 );
Delay_ms ( 100 );
Delay_ms ( 100 );
log_printf( &logger, " Accel | Gyro \r\n" );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " X = %d | X = %d \r\n", accel_data.accel_x, gyro_data.gyro_x );
log_printf( &logger, " Y = %d | Y = %d \r\n", accel_data.accel_y, gyro_data.gyro_y );
log_printf( &logger, " Z = %d | Z = %d \r\n", accel_data.accel_z, gyro_data.gyro_z );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " TEMP = %0.2f C\r\n", temperature );
log_printf( &logger, "--------------------------\r\n" );
software_reset ( &mpuimu );
Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.MpuImu

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


MPUIMU_MAP_MIKROBUS
#define MPUIMU_MAP_MIKROBUS(cfg, mikrobus)
Definition: mpuimu.h:68
mpuimu_cfg_setup
void mpuimu_cfg_setup(mpuimu_cfg_t *cfg)
Config Object Initialization function.
mpuimu_read_accel
void mpuimu_read_accel(mpuimu_t *ctx, mpuimu_accel_data_t *accel_data)
Read Axis function.
application_task
void application_task(void)
Definition: main.c:78
mpuimu_read_gyro
void mpuimu_read_gyro(mpuimu_t *ctx, mpuimu_gyro_data_t *gyro_data)
Read Axis function.
mpuimu_accel_data_t::accel_z
int16_t accel_z
Definition: mpuimu.h:315
mpuimu_cfg_t
Click configuration structure definition.
Definition: mpuimu.h:279
temperature
float temperature
Definition: main.c:28
mpuimu_gyro_data_t::gyro_z
int16_t gyro_z
Definition: mpuimu.h:326
software_reset
void software_reset(mpuimu_t *ctx)
Software reset function.
application_init
void application_init(void)
Definition: main.c:40
mpuimu_read_temperature
float mpuimu_read_temperature(mpuimu_t *ctx)
Temperature read function.
mpuimu_accel_data_t::accel_y
int16_t accel_y
Definition: mpuimu.h:314
mpuimu_accel_data_t::accel_x
int16_t accel_x
Definition: mpuimu.h:313
mpuimu_gyro_data_t::gyro_x
int16_t gyro_x
Definition: mpuimu.h:324
mpuimu_default_cfg
void mpuimu_default_cfg(mpuimu_t *ctx)
Click Default Configuration function.
gyro_data
mpuimu_gyro_data_t gyro_data
Definition: main.c:36
accel_data
mpuimu_accel_data_t accel_data
Definition: main.c:35
mpuimu_gyro_data_t::gyro_y
int16_t gyro_y
Definition: mpuimu.h:325
mpuimu_init
MPUIMU_RETVAL mpuimu_init(mpuimu_t *ctx, mpuimu_cfg_t *cfg)
Initialization function.