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mikroSDK Library

TempHum 14 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.13

mikroSDK Library: 2.0.0.0

Category: Temperature & humidity

Downloaded: 140 times

Not followed.

License: MIT license  

Temp & Hum 14 Click is a compact add-on board that contains one of the smallest and most accurate humidity and temperature sensors on the market. This board features the HTU31D, a highly accurate digital relative humidity sensor with temperature output from TE Connectivity. With power consumption down to 3.78μW and accuracy of ±2%RH and ±0.2°C, this Click board™ provides fast response time, precision measurement, low hysteresis, and sustained performance even when exposed to extreme temperature up to 125°C and humidity environments.

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  • mikroSDK Library 1.0.0.0
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mikroSDK Library Blog


TempHum 14 Click

Temp & Hum 14 Click is a compact add-on board that contains one of the smallest and most accurate humidity and temperature sensors on the market. This board features the HTU31D, a highly accurate digital relative humidity sensor with temperature output from TE Connectivity. With power consumption down to 3.78μW and accuracy of ±2%RH and ±0.2°C, this Click board™ provides fast response time, precision measurement, low hysteresis, and sustained performance even when exposed to extreme temperature up to 125°C and humidity environments.

temphum14_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Jul 2021.
  • Type : I2C type

Software Support

We provide a library for the TempHum14 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 from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for TempHum14 Click driver.

Standard key functions :

  • temphum14_cfg_setup Config Object Initialization function.

    void temphum14_cfg_setup ( temphum14_cfg_t *cfg );
  • temphum14_init Initialization function.

    err_t temphum14_init ( temphum14_t *ctx, temphum14_cfg_t *cfg );

Example key functions :

  • temphum14_set_conversion The function set conversion a single temperature and humidity conversion and select data resolution to the HTU31D RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output on the Temp-Hum 14 Click board.

    void temphum14_set_conversion ( temphum14_t *ctx, uint8_t hum_osr, uint8_t temp_osr );
  • temphum14_read_t_and_rh The function read temperature and humidity data of the HTU31D RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output on the Temp-Hum 14 Click board.

    void temphum14_read_t_and_rh ( temphum14_t *ctx, uint8_t *p_rx_data );
  • temphum14_get_temp_and_hum The function get temperature and humidity value of the HTU31D RH/T SENSOR IC Digital Relative Humidity sensor with Temperature output on the Temp-Hum 14 Click board.

    void temphum14_get_temp_and_hum ( temphum14_t *ctx, float *temp, float *hum );

Example Description

This is an example that demonstrates the use of the Temp-Hum 14 Click board. Temp-Hum 14 Click board can be used to measure temperature and relative humidity. All data logs write on USB uart changes every 3 sec.

The demo application is composed of two sections :

Application Init

Initialization driver enables I2C, and hardware reset the device and read the serial number.


void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    temphum14_cfg_t temphum14_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_printf( &logger, "-----------------------------\r\n" );
    log_info( &logger, " Application Init " );
    log_printf( &logger, "-----------------------------\r\n" );

    // Click initialization.
    temphum14_cfg_setup( &temphum14_cfg );
    TEMPHUM14_MAP_MIKROBUS( temphum14_cfg, MIKROBUS_1 );
    err_t init_flag = temphum14_init( &temphum14, &temphum14_cfg );
    if ( I2C_MASTER_ERROR == init_flag ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    Delay_ms ( 100 );
    log_printf( &logger, "-----------------------------\r\n" );
    log_printf( &logger, " Hardware Reset \r\n" );
    temphum14_hw_reset( &temphum14 );
    Delay_ms ( 100 );

    ser_numb = temphum14_get_serial_number( &temphum14 );
    log_printf( &logger, "-----------------------------\r\n" );
    log_printf( &logger, " Serial Number : %lu \r\n", ser_numb );
    log_printf( &logger, "-----------------------------\r\n" );
    log_printf( &logger, " Software Reset \r\n" );
    temphum14_soft_reset( &temphum14 );
    Delay_ms ( 100 );

    temphum14_get_diagnostic( &temphum14, &status_data );
    Delay_ms ( 10 );

    display_diagnostic( );
    Delay_ms ( 100 );

    log_info( &logger, " Application Task " );
    log_printf( &logger, "-----------------------------\r\n" );
}

Application Task

Reading temperature and humidity, and loging it on the USB uart.


void application_task ( void ) {
    temphum14_set_conversion( &temphum14, TEMPHUM14_CONVERSION_HUM_OSR_0_020, TEMPHUM14_CONVERSION_TEMP_0_040 );
    Delay_ms ( 10 );

    temphum14_get_temp_and_hum( &temphum14, &temperature, &humidity );
    Delay_ms ( 10 );

    log_printf( &logger, "  Temperature : %.2f C \r\n", temperature );
    log_printf( &logger, "  Humidity    : %.2f %% \r\n", humidity );
    log_printf( &logger, "-----------------------------\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.TempHum14

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. UART terminal is available in all MikroElektronika compilers.


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