• CIC Prefix : TEMPHUM9
• Author : Aleksandar Paunovic
• Verison : 1.0.0
• Date : Nov 2018.

We provide a library for the Temp_Hum_9 Click on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Library Description

Library contains

Key functions :

• void temphum9_readRegister( uint16_t registerAddress_, uint8_t nData_, uint16_t *registerBuffer_ ) - reads one or two 16-bit registers
• void temphum9_sendCommand( uint16_t command_ ) - issues (sends) command to device
• void temhum9_getTemperatureAndHumidity( uint8_t mode_, float *measurementData) - performs temperature and relative humidity measurement and calculates temperature and relative humidity

Examples Description

Description :

The application is composed of three sections :

• System Initialization - Initializes LOG and I2C
• Application Initialization - Initializes I2C driver and sends SLEEP and WAKEUP dommands
• Application Task - Performs simultaneous temperature and relative humidity measurements and logs both values

void applicationTask( )
{
    mikrobus_logWrite( " ", _LOG_LINE );

    temhum9_getTemperatureAndHumidity( _TEMPHUM9_NORMAL_MODE, &measurementData[0] );
    
    FloatToStr( measurementData[0], text );
    mikrobus_logWrite( "> > > Temperature       : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( " C", _LOG_LINE );
    
    FloatToStr( measurementData[1], text );
    mikrobus_logWrite( "> > > Relative humidity : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( " %", _LOG_LINE );
    
    mikrobus_logWrite( " ", _LOG_LINE );
    
    Delay_ms(1000);
}

The full application code, and ready to use projects can be found on our LibStock page.

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.