Library Description

The library covers all the necessary functions to control SHT AN Click board.

Key functions :

• void shtan_set_mode ( uint8_t adc_mode ) - Set ADC mode function.
• void shtan_reset ( void ) - Hardware reset function.

Examples description

The application is composed of three sections :

• System Initialization - Initializes GPIO and start to write log.
• Application Initialization - Initialization driver enables - GPIO, sw reset, initializes ADC, set ADC channel and sets ADC read mode.
• Application Task - (code snippet) This is a example which demonstrates the use of SHT AN Click board. Measured temperature and humidity ADC data and calculate temperature data to degrees Celsius [ ºC ] and humidity data to percentarg [ % ]. Results are being sent to the Usart Terminal where you can track their changes. All data logs on usb uart for aproximetly every 3 sec.

void application_task ( )
{
    shtan_calculate_temperature( );
    mikrobus_logWrite( " Temp. : ", _LOG_TEXT );
    display_log( temperature );
    mikrobus_logWrite( degCel, _LOG_LINE );

    shtan_calculate_humidity( );
    mikrobus_logWrite( " Hum.  : ", _LOG_TEXT );
    display_log( humidity );
    mikrobus_logWrite( " %", _LOG_LINE );
    mikrobus_logWrite( "------------------", _LOG_LINE );

    Delay_ms( 1000 );
}

• void shtan_calculate_temperature ( void ) - Calculate temperature
• void shtan_calculate_humidity ( void ) - Calculate humidity
• void display_log ( float value ) - Displays readings as floating point value with two decimal places

Other mikroE Libraries used in the example:

• ADC
• 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.