Library Description

The library covers all the necessary functions to control Cap Touch 5 Click.

Key functions:

• void captouch5_config_sensors( uint16_t sens_data ) - Function for configuring sensor.
• void captouch5_config_slider( uint8_t slider_data ) - Function for configuring slider.
• void captouch5_read_button_status( T_CAPTOUCH5_BUTTONS *buttons ) - Function read button status.

Examples description

The application is composed of three sections :

• System Initialization - Initializes I2C module
• Application Initialization - Initializes driver init, tests communication and configures device
• Application Task - Waiting for touch sensor to detect something and then logs what is touched

void applicationTask(  )
{
    uint16_t temp_byte;
    uint16_t last_temp;
    uint8_t error_data;
    uint8_t temp_slider;

    state_check = 0;

    error_data = captouch5_process(  );

    if ( error_data == CAPTOUCH5_ERROR )
    {
        mikrobus_logWrite( "***** ERROR *****", _LOG_LINE );
        mikrobus_logWrite( " ", _LOG_LINE );
        mikrobus_logWrite( " ", _LOG_LINE );
        state_check = 1;
        return;
    }

    temp_byte = captouch5_read_slider_position(  );
    captouch5_read_button_status( &buttons );

    if ( temp_byte != last_temp )
    {
        mikrobus_logWrite( "Slider position value: ", _LOG_TEXT );
        WordToStr( temp_byte, demo_text );
        mikrobus_logWrite( demo_text, _LOG_LINE );
        mikrobus_logWrite( " ", _LOG_LINE );
        mikrobus_logWrite( " ", _LOG_LINE );
        last_temp = temp_byte;
        state_check = 1;
    }

    captouch5_read_buttons(  );

    Delay_ms ( 100 );

    if ( state_check == 1 )
    {
        mikrobus_logWrite( "--- Waiting for command ---", _LOG_LINE );
        mikrobus_logWrite( " ", _LOG_LINE );
        mikrobus_logWrite( " ", _LOG_LINE );
    }
}

Additional Functions :

• _captouch5_readButtons() - Logs button press
• _captouch5_deviceConfig() - Configures device

Note :

• Click will go to sleep if doesn't get any command in 340ms
• When you start device try restarting your board few times to start device

Other mikroE Libraries used in the example:

• I2C
• 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.