Library Description

The library covers all the necessary functions to control TMR Angle click board. A library performs a standard SPI interface communication.

Key functions:

• void tmrangle_initSensorData() - Read and stores parameters data function.
• void tmrangle_calibrationFindParam( tmrangle_calib_data_t *calibParam ) - Get new calibration rotation parameters function.
• float tmrangle_getCalibAngle( tmrangle_calib_data_t *calibParam ) - Calculate the calibrated angle ( degree ) function.

Examples description

The application is composed of three sections :

• System Initialization - Initializes SPI and start to write log.
• Application Initialization - Initialization driver enables - SPI, initializes, also write log.
• Application Task - (code snippet) This is a example which demonstrates the use of TMR Angle Click board. Reads angle value in degrees. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on usb uart changes for every 1 sec.

void applicationTask()
{
    tmrangle_initSensorData();
    tmrangle_initCalibData( &calibrationStoreParams, _TMRANGLE_MAX_DIFF_SIN, _TMRANGLE_MAX_DIFF_COS, _TMRANGLE_MIN_DIFF_SIN, _TMRANGLE_MIN_DIFF_COS, _TMRANGLE_SIN_45, _TMRANGLE_COS_45, _TMRANGLE_SIN_135, _TMRANGLE_COS_135 );
    tmrangle_calibrationFindParam( &calibrationStoreParams );

    angle = tmrangle_getCalibAngle( &calibrationStoreParams );

    FloatToStr( angle, logText );
    mikrobus_logWrite( " Angle is ", _LOG_TEXT );
    mikrobus_logWrite( logText, _LOG_TEXT );
    mikrobus_logWrite( degCel, _LOG_LINE );
    mikrobus_logWrite( "----------------------", _LOG_LINE );

    Delay_1sec();
}

Other mikroE Libraries used in the example:

• SPI
• UART
• Conversions

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.