HDC1000 Click

HDC1000 Click is a humidity and temperature measurement Click board carrying the HDC1000 sensor.

Click Product page

Click library

• Author : Mihajlo Djordevic
• Date : Dec 2019.
• Type : I2C type

Software Support

We provide a library for the HDC1000 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 HDC1000 Click driver.

Standard key functions :

• Config Object Initialization function.

  void hdc1000_cfg_setup ( hdc1000_cfg_t *cfg );

• Initialization function.

  HDC1000_RETVAL hdc1000_init ( hdc1000_t ctx, hdc1000_cfg_t cfg );

• Click Default Configuration function.

  void hdc1000_default_cfg ( hdc1000_t *ctx );

Example key functions :

• This function executes default configuration for HDC1000 Click.

  hdc1000_default_cfg( &hdc1000 );

• This function gets temperature data from the HDC1000 sensor.

  hdc1000_get_temperature_data( &hdc1000 );

• This function gets humidity data from the HDC1000 sensor.

  hdc1000_get_humidity_data( &hdc1000 );

Examples Description

Demo application code is used for measuring temperature and humidity.

The demo application is composed of two sections :

Application Init

AppInit is used for Logger and Click initialization.

void application_init ( void )
{
    log_cfg_t log_cfg;
    hdc1000_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_printf( &logger, "---- Application Init ---- \r\n\n" );

    //  Click initialization.

    hdc1000_cfg_setup( &cfg );
    HDC1000_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    hdc1000_init( &hdc1000, &cfg );

    hdc1000_default_cfg( &hdc1000 );
    log_printf( &logger, "---- Start measurement ---- \r\n\n" );
    Delay_ms ( 1000 );

}

Application Task

This is an example which demonstrates the usage of HDC1000 Click board. HDC1000 measure temperature and humidity, and calculate dewpoint value from the HDC1000 sensor.

void application_task ( void )
{
    temperature = hdc1000_get_temperature_data( &hdc1000 );
    log_printf( &logger, " Temperature : %f C \r\n", temperature );

    humidity = hdc1000_get_humidity_data( &hdc1000 );
    log_printf( &logger, " Humidity : %f % \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 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.HDC1000

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.