Library Description

The library covers all the necessary functions to control Temp&Hum 14 Click board™. Library performs a standard I2C interface communication.

Key functions:

• void temphum14_set_conversion ( uint8_t hum_osr, uint8_t temp_osr ) - Set conversion function.
• void temphum14_get_diagnostic ( temphum14_diagn_t *diag_data ) - Get diagnostic status function.
• void temphum14_get_temp_and_hum ( float *temp, float *hum ) - Get temperature and humidity data function.

Examples description

The application is composed of three sections :

• System Initialization - Initializes I2C, set RST as output and start to write log.
• Application Initialization - Initialization driver enables - I2C, hardware reset the device and read the serial number, also write log.
• Application Task - (code snippet) This is an example that demonstrates the use of the Temp & Hum 14 Click board™. Temp & Hum 14 Click board™ can be used to measure temperature and relative humidity. All data logs write on USB uart changes every 3 sec.

void application_task ( )
{
    temphum14_set_conversion( TEMPHUM14_CONVERSION_HUM_OSR_0_020,
                              TEMPHUM14_CONVERSION_TEMP_0_040 );
    Delay_ms( 10 );
    
    temphum14_get_temp_and_hum( &temperature, &humidity );
    Delay_ms( 10 );
    
    FloatToStr( temperature, log_text );
    mikrobus_logWrite( "  Temperature : ", _LOG_TEXT );
    mikrobus_logWrite( log_text, _LOG_TEXT );
    mikrobus_logWrite( " C", _LOG_LINE );
    
    FloatToStr( humidity, log_text );
    mikrobus_logWrite( "  Humidity    : ", _LOG_TEXT );
    mikrobus_logWrite( log_text, _LOG_TEXT );
    mikrobus_logWrite( " %", _LOG_LINE );
    mikrobus_logWrite( "-----------------------------", _LOG_LINE );
    Delay_ms( 3000 );
}

Additional Functions :

• void display_diagnostic ( void ) - Display diagnostic.

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.