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mikroSDK Library

Temp-Hum 9 click

Rating:

5

Author: MikroElektronika Team

Last Updated: 2018-11-27

Category: Measurement

Downloaded: 356 times

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Temp-Hum 9 click is a smart temperature and humidity sensing click board, packed with features that allow simple integration into any design.

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mikroSDK Library Blog

Temp-Hum 9 click

Temp-Hum 9 click

Native view of the Temp-Hum 9 click board.

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Temp-Hum 9 click

Temp-Hum 9 click

Front and back view of the Temp-Hum 9 click board.

View full image

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

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);
}

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 clickUSB UART 2 clickor 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.

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