Thermo 28 Click

Thermo 28 Click is a compact add-on board that accurately measures temperature. This board features the ams AG’s AS6221, a high-accuracy digital temperature sensor. The AS6221 consists of a Si bandgap temperature factory-calibrated sensor, 16-bit ADC, and a digital signal processor, offering a high accuracy of ±0.9°C. It provides temperature data to the host controller through a compatible I2C interface, reliability, user-selectable I2C addresses, and alert functionality, which triggers an interrupt to protect the device from excessive temperatures.

Click Product page

Click library

• Author : Nenad Filipovic
• Date : Nov 2022.
• Type : I2C type

Software Support

We provide a library for the Thermo 28 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 Thermo 28 Click driver.

Standard key functions :

• thermo28_cfg_setup Config Object Initialization function.

  void thermo28_cfg_setup ( thermo28_cfg_t *cfg );

• thermo28_init Initialization function.

  err_t thermo28_init ( thermo28_t *ctx, thermo28_cfg_t *cfg );

• thermo28_default_cfg Click Default Configuration function.

  err_t thermo28_default_cfg ( thermo28_t *ctx );

Example key functions :

• thermo28_get_temperature Thermo 28 get temperature function.

  err_t thermo28_get_temperature ( thermo28_t *ctx, float *temperature );

• thermo28_set_config Thermo 28 set configuration function.

  err_t thermo28_set_config ( thermo28_t *ctx, thermo28_config_t config );

• thermo28_set_continuous_conversion Thermo 28 set continuous conversion function.

  err_t thermo28_set_continuous_conversion ( thermo28_t *ctx );

Example Description

This example demonstrates the use of Thermo 28 Click board™ by reading and displaying the temperature measurements.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    thermo28_cfg_t thermo28_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.
    thermo28_cfg_setup( &thermo28_cfg );
    THERMO28_MAP_MIKROBUS( thermo28_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == thermo28_init( &thermo28, &thermo28_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    Delay_ms ( 100 );

    if ( THERMO28_ERROR == thermo28_default_cfg ( &thermo28 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

This is an example that shows the use of a Thermo 28 Click board™. Reads the temperature measurement in degree Celsius and displays the results. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void ) 
{
    float temperature;

    if ( THERMO28_OK == thermo28_get_temperature( &thermo28, &temperature ) )
    {
        log_printf( &logger, " Temperature [degC]: %.2f \r\n", temperature );
        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.Thermo28

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.