temphum16

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Temp&Hum 16 Click

TempHum 16 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 : Nenad Filipovic
• Date : May 2021.
• Type : I2C/SPI type

Software Support

Example Description

This library contains API for the Temp&Hum 16 Click driver. This demo application shows an example of humidity and temperature measurement.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.TempHum16

Example Key Functions

• temphum16_cfg_setup Config Object Initialization function.

void temphum16_cfg_setup ( temphum16_cfg_t *cfg );

• temphum16_init Initialization function.

err_t temphum16_init ( temphum16_t *ctx, temphum16_cfg_t *cfg );

• temphum16_default_cfg Click Default Configuration function.

void temphum16_default_cfg ( temphum16_t *ctx );

• temphum16_check_ready Temp&Hum 16 check ready function.

uint8_t temphum16_check_ready ( temphum16_t *ctx );

• temphum16_get_humidity Temp&Hum 16 get humidity function.

err_t temphum16_get_humidity ( temphum16_t *ctx, float *humidity );

• temphum16_get_temperature Temp&Hum 16 get temperature function.

err_t temphum16_get_temperature ( temphum16_t *ctx, float *temperature );

Application Init

Initialization of SPI or I2C module and log UART. After driver initialization and default settings, the app display retrieves the sensor parameters such as temperature and humidity.

void application_init ( void ) 
{
    log_cfg_t log_cfg;              /**< Logger config object. */
    temphum16_cfg_t temphum16_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_info( &logger, " Application Init " );

    // Click initialization.

    temphum16_cfg_setup( &temphum16_cfg );
    TEMPHUM16_MAP_MIKROBUS( temphum16_cfg, MIKROBUS_1 );
    err_t init_flag  = temphum16_init( &temphum16, &temphum16_cfg );
    if ( ( init_flag == I2C_MASTER_ERROR ) || ( init_flag == SPI_MASTER_ERROR ) ) {
        log_info( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    temphum16_default_cfg ( &temphum16 );
    log_info( &logger, " Application Task " );
    Delay_ms ( 100 );

    temphum16_get_device_id( &temphum16, &device_id );
    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "  Check communication  \r\n" ); 
    if ( device_id == TEMPHUM16_DEVICE_ID ){
        log_printf( &logger, "      Successful   \r\n" );    
    } else {
        log_printf( &logger, "        Failed     \r\n" );
        
        for ( ; ; );
    }
    
    log_printf( &logger, "-----------------------\r\n" );
    log_printf( &logger, "   Start measurements  \r\n" );
    log_printf( &logger, "-----------------------\r\n" );
}

Application Task

This is an example that shows the use of a Temp&Hum 16 Click board™. Logs humidity [ % ] and temperature [ degree Celsius ] data. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void ) 
{
    if ( temphum16_check_ready( &temphum16 ) == TEMPHUM16_DRDY ) {
        temphum16_get_temperature( &temphum16, &temperature );
        log_printf( &logger, " Temperature : %.2f C\r\n", temperature ); 
        
        temphum16_get_humidity( &temphum16, &humidity );
        log_printf( &logger, " Humidity    : %.2f %%\r\n", humidity ); 
        log_printf( &logger, "-----------------------\r\n" );
        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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