Library Description

The library covers all the functions necessary to control VCP Monitor 3 click board. It initializes and defines the SPI and I2C bus drivers, and holds functions that allow full control of the device to the user. User can change operation mode, read: current, power, voltage, VCC voltage, energy, charge and base time. User can also use various read and write functions.

Key functions:

• float vcpmonitor3_read_i ( ); - Function is used to get current in Amperes.
• float vcpmonitor3_read_p ( ); - Function is used to get power in Watts.
• float vcpmonitor3_read_v ( ); - Function is used to get voltage in Volts.

Examples description

The application is composed of three sections :

• System Initialization - Initializes I2C and LOG, and sets CS and PWM pins as output and INT pin as input.
• Application Initialization - Initalizes I2C driver and sets up the device.
• Application Task - This example shows capabilities of VCP Monitor 3 Click board by reading current, voltage, power, die temperature and voltage at DVCC and displaying the results via USART terminal.

void application_task( )
{
    float cur_data;
    float volt_data;
    float pow_data;
    float die_temp;
    float volt_vcc;

    cur_data = vcpmonitor3_read_i(  );
    FloatToStr( cur_data, log_txt );
    mikrobus_logWrite( "Current : ", _LOG_TEXT );
    mikrobus_logWrite( log_txt, _LOG_TEXT );
    mikrobus_logWrite( " A", _LOG_LINE );

    pow_data = vcpmonitor3_read_p(  );
    FloatToStr( pow_data, log_txt );
    mikrobus_logWrite( "Power : ", _LOG_TEXT );
    mikrobus_logWrite( log_txt, _LOG_TEXT );
    mikrobus_logWrite( " W", _LOG_LINE );

    volt_data = vcpmonitor3_read_v(  );
    FloatToStr( volt_data, log_txt );
    mikrobus_logWrite( "Voltage : ", _LOG_TEXT );
    mikrobus_logWrite( log_txt, _LOG_TEXT );
    mikrobus_logWrite( " V", _LOG_LINE );

    die_temp = vcpmonitor3_read_temp(  );
    FloatToStr( die_temp, log_txt );
    mikrobus_logWrite( "Die Temperature : ", _LOG_TEXT );
    mikrobus_logWrite( log_txt, _LOG_TEXT );
    mikrobus_logWrite( deg_cel, _LOG_LINE );

    volt_vcc = vcpmonitor3_read_vcc(  );
    FloatToStr( volt_vcc, log_txt );
    mikrobus_logWrite( "Voltage at DVCC : ", _LOG_TEXT );
    mikrobus_logWrite( log_txt, _LOG_TEXT );
    mikrobus_logWrite( " V", _LOG_LINE );

    mikrobus_logWrite( " ------------------------------- ", _LOG_LINE );
    Delay_ms( 1000 );
}

Other mikroE Libraries used in the example:

• I2C
• 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.