temphum

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Temp Hum Click

TempHum Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

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

Software Support

Example Description

This application measures temperature and humidity, with temperature in range of 0 - 60 deg.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.TempHum

Example Key Functions

• temphum_cfg_setup Config Object Initialization function.

void temphum_cfg_setup ( temphum_cfg_t *cfg );

• temphum_init Initialization function.

err_t temphum_init ( temphum_t *ctx, temphum_cfg_t *cfg );

• temphum_default_cfg Click Default Configuration function.

void temphum_default_cfg ( temphum_t *ctx );

• Function gets temperature value in degrees Celsius [ �C ] and humidity value in percentage [ % ] by reading from the two target 8-bit register address of HTS221 sensor on Temp&Hum Click and converts it by performing linear interpolation on read data.

void temphum_get_temp_hum ( temphum_t *ctx, float *temperature, float *humidity );

• Function get temperature value in degrees Celsius [ �C ] from HTS221 sensor on Temp&Hum Click.

float temphum_get_temperature( temphum_t *ctx );

• Function get humidity value in percentage [ % ] from HTS221 sensor on Temp&Hum Click.

float temphum_get_humidity( temphum_t *ctx );

Application Init

Initialization driver enable's - I2C, set default configuration and start write log.

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

    /** 
     * 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_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    temphum_cfg_setup( &cfg );
    TEMPHIM_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    temphum_init( &temphum, &cfg );

    temphum_default_cfg( &temphum );

    log_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, "      Temp&Hum Click      \r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, "       Initializing       \r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    
    Delay_ms ( 100 );
}

Application Task

This is a example which demonstrates the use of TempAndHum Click board. Measured temperature and humidity data from the HTS221 sensor. Convert temperature data to degrees Celsius [ �C ] and humidity data to percentarg [ % ]. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on usb uart changes for every 3 sec.

void application_task ( void )
{
    //  Task implementation.

    float temperature;
    float humidity;

    temperature = temphum_get_temperature( &temphum );

    humidity = temphum_get_humidity( &temphum );

    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 );
}

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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