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Temp-Hum 9 click

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

click Product page

Click library

  • Author : MikroE Team
  • Date : Dec 2019.
  • Type : I2C type

Software Support

We provide a library for the TempHum9 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for TempHum9 Click driver.

Standard key functions :

  • Config Object Initialization function.

void temphum9_cfg_setup ( temphum9_cfg_t *cfg );

  • Initialization function.

TEMPHUM9_RETVAL temphum9_init ( temphum9_t *ctx, temphum9_cfg_t *cfg );

  • Click Default Configuration function.

void temphum9_default_cfg ( temphum9_t *ctx );

Example key functions :

  • Calculating temperature

float temphum9_get_temperature ( temphum9_t *ctx, uint8_t data );

  • Calculating relative humidity

temphum9_get_relative_humidity ( temphum9_t *ctx, uint8_t data );

  • Calculating temperature and relative humidity

temhum9_get_temperature_and_humidity ( *ctx uint8_t data , float *measurement_data )

Examples Description

Temp-Hum 9 click can measure the humidity in the range from 0 to 100 %RH and temperature in the range from -40 ℃ to +125 ℃ with a typical accuracy of ±2 %RH and ±0.2 ℃

The demo application is composed of two sections :

Application Init

Initializes I2C driver and sends SLEEP and WAKEUP dommands

void application_init ( void )
{
    log_cfg_t log_cfg;
    temphum9_cfg_t cfg;

    //  Logger initialization.

    log_cfg.level = LOG_LEVEL_DEBUG;
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    temphum9_cfg_setup( &cfg );
    TEMPHUM9_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    temphum9_init( &temphum9, &cfg );

    temphum9_send_command( &temphum9, TEMPHUM9_SLEEP );

    temphum9_sendCommand( &temphum9, TEMPHUM9_SLEEP );
    Delay_ms(500);
    temphum9_sendCommand( &temphum9, TEMPHUM9_WAKEUP );
    Delay_ms(100);
    
    log_printf( &logger, "< < < app init done > > >" );
}

Application Task

Performs simultaneous temperature and relative humidity measurements and logs both values

void application_task( )
{
    log_printf( &logger, " " );

    temhum9_get_temperature_and_humidity( &temphum9, TEMPHUM9_NORMAL_MODE, &measurement_data[ 0 ] );
    
    log_printf( &logger, "> > > Temperature       : %d C \r\n", text );

    log_printf( &logger, "> > > Relative humidity       : %d ", text );
    log_printf( &logger, " %% \r\n" );
    
    Delay_ms(1000);
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.TempHum9

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.