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mikroSDK Library

Temp-Hum 7 click

Rating:

6

Author: MikroElektronika Team

Last Updated: 2018-11-26

Category: Measurement

Downloaded: 263 times

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Temp&amp;Hum 7 click is a Click board which is perfectly suited for measuring the relative humidity (RH) and temperature.

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mikroSDK Library Blog

Temp-Hum 7 click

Temp-Hum 7 click

Native view of the Temp-Hum 7 Click board.

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Temp-Hum 7 click

Temp-Hum 7 click

Front and back view of the Temp-Hum 7 Click board.

View full image

Library Description

The library contains functions for reading register content and setting register content Library contains functions for reading the electronic serial number and firmware revision Library contains functions for reading temperature (C), humidity(%RH) and heater current (mA) values Library contains a function for device reset.

Key functions:

  • void temphum7_setData( uint8_t command_, uint8_t dataIn_ ); - sets one byte of register data
  • float temphum7_getRelativeHumidity( uint8_t mode_ ) - performs relative humidity measurement and calculates relative humidity
  • float temphum7_getTemperature ( uint8_t mode_ ) - performs temperature measurement and calculates the temperature

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes I2C and LOG
  • Application Initialization - Initializes I2C driver, and sets 12-bit resolution for measurements
  • Application Task - Calculates and Logs temperature and relative humidity
void applicationTask()
{
    mikrobus_logWrite( " ", _LOG_LINE );
    
    temperature = temphum7_getTemperature( _TEMPHUM7_HOLD_MASTER_MODE );
    FloatToStr( temperature, text );
    mikrobus_logWrite( " > > > temperature        : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( " C", _LOG_LINE );

    relativeHumidity = temphum7_getRelativeHumidity( _TEMPHUM7_HOLD_MASTER_MODE );
    FloatToStr( relativeHumidity, text );
    mikrobus_logWrite( " > > > relative humidity  : ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( " %RH", _LOG_LINE );

    Delay_ms(1000);

}

 

Other mikroE Libraries used in the example:

  • I2C
  • UART
  • Conversions

Additional notes and information

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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