9DOF 3 Click Board
9DOF 3 Click Board
The 9DOF 3 Click Board™ introduces the BMX055, a small-scale absolute orientation sensor in the class of low-noise 9-axis measurement units, from Bosch Sensortec. It comprises the full functionality of a triaxial, low-g acceleration sensor, a triaxial angular rate sensor and a triaxial geomagnetic sensor. All three sensor components of the BMX055 can be operated and addressed independently from each other.
On top, the BMX055 integrates a multitude of features that facilitate its use especially in the area of motion detection applications, such as device orientation measurement, gaming, HMI or menu browser control. The 9DOF 3 Click Board™ offers both SPI and I2C digital interfaces for easy and fast system integration.
Software Support
We provide a library for the 9DOF 3 Click Board™ on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Library Description
The library covers all the necessary functions to control the 9DOF 3 Click Board™. The library performs a standard I2C and SPI interface communication.
Key Functions
void c9dof3_multi_write ( uint8_t sel_mode, uint8_t reg, uint8_t *p_tx_data, uint8_t n_bytes )
- Generic write sequence function.void c9dof3_default_config ( void )
- Set default configuration function.void c9dof3_get_data ( c9dof3_accel_t *accel_data, c9dof3_gyro_t *gyro_data, c9dof3_mag_t *mag_data )
- Read Accel, Gyro and Mag data function.
Example Description
The application is composed of three sections :
- System Initialization - Initializes I2C/SPI and start to write log.
- Application Initialization - Initialization driver enables - I2C/SPI, check communication, set the default configuration for accelerometer, gyroscope and magnetometer, also write log.
- Application Task - (code snippet) This is an example that demonstrates the use of the 9DOF 3 Click Board™. Measured and display Accel, Gyroscope and Magnetometer data coordinates values for X-axis, Y-axis and Z-axis. Results are being sent to the Usart Terminal where you can track their changes. All data logs written on USB uart changes for every 1 sec.
void application_task( ) { c9dof3_get_data ( &accel_data, &gyro_data, &mag_data ); mikrobus_logWrite( " Accel X: ", _LOG_TEXT ); IntToStr( accel_data.x, log_text ); mikrobus_logWrite( log_text, _LOG_TEXT ); mikrobus_logWrite( " |", _LOG_TEXT ); mikrobus_logWrite( " Gyro X: ", _LOG_TEXT ); IntToStr( gyro_data.x, log_text ); mikrobus_logWrite( log_text, _LOG_TEXT ); mikrobus_logWrite( " |", _LOG_TEXT ); mikrobus_logWrite( " Mag X: ", _LOG_TEXT ); IntToStr( mag_data.x, log_text ); mikrobus_logWrite( log_text, _LOG_LINE ); mikrobus_logWrite( " Accel Y: ", _LOG_TEXT ); IntToStr( accel_data.y, log_text ); mikrobus_logWrite( log_text, _LOG_TEXT ); mikrobus_logWrite( " |", _LOG_TEXT ); mikrobus_logWrite( " Gyro Y: ", _LOG_TEXT ); IntToStr( gyro_data.y, log_text ); mikrobus_logWrite( log_text, _LOG_TEXT ); mikrobus_logWrite( " |", _LOG_TEXT ); mikrobus_logWrite( " Mag Y: ", _LOG_TEXT ); IntToStr( mag_data.y, log_text ); mikrobus_logWrite( log_text, _LOG_LINE ); mikrobus_logWrite( " Accel Z: ", _LOG_TEXT ); IntToStr( accel_data.z, log_text ); mikrobus_logWrite( log_text, _LOG_TEXT ); mikrobus_logWrite( " |", _LOG_TEXT ); mikrobus_logWrite( " Gyro Z: ", _LOG_TEXT ); IntToStr( gyro_data.z, log_text ); mikrobus_logWrite( log_text, _LOG_TEXT ); mikrobus_logWrite( " |", _LOG_TEXT ); mikrobus_logWrite( " Mag Z: ", _LOG_TEXT ); IntToStr( mag_data.z, log_text ); mikrobus_logWrite( log_text, _LOG_LINE ); mikrobus_logWrite( "-------------------------", _LOG_TEXT); mikrobus_logWrite( "-------------------------", _LOG_LINE ); Delay_ms( 1000 ); }
The full application code, and ready to use projects can be found on our LibStock page.
Other mikroE Libraries used in the example:
- I2C or SPI
- UART
- Conversions
Additional Notes and Information
Depending on the development board you are using, you may need a 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.
MIKROSDK
The 9DOF 3 Click Board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
9DOF 3 Click Board
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