Library Description

The library contains basic functions for starting both sensors and reading data that the sensors measure.

Key functions:

• void c13dof2_bmx160_getAxis(uint8_t sensor, T_C13DOF2_BMX160_AXIS *sAxis) - Reads Axis data from the BMX160 sensor (Accel, Gyro, Magnetic).
• uint16_t c13dof2_bmx160_getStepCounter() - Read Step counter.
• float c13dof2_bme680_getAmbientData(uint8_t dataIn) - Reads Ambient data from BME680 sensor (Temperature, Pressure and Humidity).

Examples description

The application is composed of three sections :

• System Initialization - Initialization I2C or SPI module and sets all the necessary GPIO pins.
• Application Initialization - Initializes the driver init, checks the communication and starts configuration for chips BMX160 and BME680.
• Application Task - This example reads all parameters from those sensors (Acceleration, Gyro, Magnetic, Temperature, etc.) and shows them on USB UART log.

void applicationTask()
{
    /* BMX160 */
    c13dof2_bmx160_getAxis(_C13DOF2_BMX160_DATA_ACCEL,  &Accel);
    c13dof2_bmx160_getAxis(_C13DOF2_BMX160_DATA_GYRO,   &Gyro);
    c13dof2_bmx160_getAxis(_C13DOF2_BMX160_DATA_MAGNET, &Magnet);

    temperature_bmx160 = c13dof2_bmx160_internalTemperature();
    step_counter = c13dof2_bmx160_getStepCounter();
    c13dof2_bmx160_getInterruptStatus(&status);

    /* BME680 */
    temperature = c13dof2_bme680_getAmbientData(_C13DOF2_BME680_DATA_TEMPERATURE);
    pressure = c13dof2_bme680_getAmbientData(_C13DOF2_BME680_DATA_PRESSURE);
    humidity = c13dof2_bme680_getAmbientData(_C13DOF2_BME680_DATA_HUMIDITY);

    gas = c13dof2_bme680_getGasResistance();

    mikrobus_logWrite( "-------------------------------------------------------" , _LOG_LINE );
    mikrobus_logWrite( "------  BMX160 DATA  ------", _LOG_LINE );
    _displayData_BMX160();

    mikrobus_logWrite( "------  BME680 DATA  ------", _LOG_LINE );
    _displayData_BME680();

    mikrobus_logWrite( " ", _LOG_LINE );

    Delay_ms( 1000 );
}

Additional Functions :

• void _interruptDetect() - display interupt state (TAP status)
• void _displayData_BMX160() - display BMIX160 data (Accel, Gyro, Magnetic, Step counter, and internal senzor Temperature)
• void _displayData_BME680() - display BME680 data (Temperature, Pressure, Humidity and Gas resistance)

Other mikroE Libraries used in the example:

• I2C library
• SPI Library
• UART Library
• Conversions Library

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.