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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.7
mikroSDK Library: 2.0.0.0
Category: Temperature & humidity
Downloaded: 230 times
Not followed.
License: MIT license
Thermo K 3 Click is a compact add-on board that provides accurate temperature measurements with a thermocouple probe. This board features the MAX6675, a cold-junction-compensated K-thermocouple-to-digital converter from Analog Devices. With the versatile type-K probe, this board enables precise temperature measurements of up to +700°C in 12-bit (0.25°C) resolution. This board can measure temperatures as high as +1024°C but with less precision. It features cold-junction compensation sensing and correction and open thermocouple detection.
 
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| DOWNLOAD LINK | RELATED COMPILER | CONTAINS | 
|---|---|---|
| 5279_thermo_k_3_click.zip [543.75KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for AVR mikroC AI for dsPIC XC16 | 
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Thermo K 3 Click is a compact add-on board that provides accurate temperature measurements with a thermocouple probe. This board features the MAX6675, a cold-junction-compensated K-thermocouple-to-digital converter from Analog Devices. With the versatile type-K probe, this board enables precise temperature measurements of up to +700°C in 12-bit (0.25°C) resolution. This board can measure temperatures as high as +1024°C but with less precision. It features cold-junction compensation sensing and correction and open thermocouple detection.
  
We provide a library for the Thermo K 3 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.
This library contains API for Thermo K 3 Click driver.
thermok3_cfg_setup Config Object Initialization function.
void thermok3_cfg_setup ( thermok3_cfg_t *cfg );thermok3_init Initialization function.
err_t thermok3_init ( thermok3_t *ctx, thermok3_cfg_t *cfg );thermok3_read_data This function reads a raw data output by using the SPI serial interface.
err_t thermok3_read_data ( thermok3_t *ctx, uint16_t *data_out );thermok3_read_temperature This function reads a raw data output and converts it to temperature in Celsius.
err_t thermok3_read_temperature ( thermok3_t *ctx, float *temperature );This example demonstrates the use of Thermo K 3 Click board by reading and displaying the temperature measurements.
The demo application is composed of two sections :
Initializes the driver and logger.
void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    thermok3_cfg_t thermok3_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.
    thermok3_cfg_setup( &thermok3_cfg );
    THERMOK3_MAP_MIKROBUS( thermok3_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == thermok3_init( &thermok3, &thermok3_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    log_info( &logger, " Application Task " );
}
Reads the temperature measurement in Celsius and displays the results on the USB UART approximately once per second. If there's no thermocouple type-K probe inserted an appropriate message will be displayed instead.
void application_task ( void )
{
    float temperature = 0;
    err_t error_flag = thermok3_read_temperature ( &thermok3, &temperature );
    if ( THERMOK3_OK == error_flag )
    {
        log_printf( &logger, " Temperature: %.2f C\r\n\n", temperature );
    }
    else if ( THERMOK3_OPEN_THERMOCOUPLE == error_flag )
    {
        log_printf( &logger, " NO thermocouple input\r\n\n" );
    }
    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:
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.