sht

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SHT Click

SHT 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 : Feb 2020.
• Type : I2C type

Software Support

Example Description

This application enables usage of the temperature and humidity sensor.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Sht

Example Key Functions

• sht_cfg_setup Config Object Initialization function.

void sht_cfg_setup ( sht_cfg_t *cfg ); 

• sht_init Initialization function.

err_t sht_init ( sht_t *ctx, sht_cfg_t *cfg );

• sht_temp_ss Returns temperature measurement in single shot mode.

float sht_temp_ss ( sht_t *ctx );

• sht_hum_ss Returns humidity measurement in single shot mode.

float sht_hum_ss ( sht_t *ctx );

• sht_heater_control Sets the heater state.

void sht_heater_control ( sht_t *ctx, uint8_t state );

Application Init

Initialize the communication interface and configure the Click board.

void application_init ( void )
{
    log_cfg_t log_cfg;
    sht_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.
    sht_cfg_setup( &cfg );
    SHT_MAP_MIKROBUS( cfg, MIKROBUS_POSITION_SHT );
    sht_init( &sht, &cfg );
    
    sht_reset( &sht );
    sht_hw_reset( &sht );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    
    log_info( &logger, " Application Task " );
}

Application Task

Temperature and humidity data is measured and read from the sensor. After the data has been read it is displayed on the serial port.

void application_task ( void )
{
    float temperature = 0;
    float humidity = 0;

    temperature = sht_temp_ss( &sht );
    log_printf( &logger, " Temperature: %.2f degC\r\n", temperature );

    humidity = sht_hum_ss( &sht );
    log_printf( &logger, " Humidity: %.2f %%\r\n\n", humidity );

    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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