thermostat5

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Thermostat 5 Click

Thermostat 5 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 : Feb 2024.
• Type : ADC/I2C type

Software Support

Example Description

This library contains API for the Thermostat 5 Click driver for temperature measurement and relay control.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Thermostat5

Example Key Functions

• thermostat5_cfg_setup Config Object Initialization function.

void thermostat5_cfg_setup ( thermostat5_cfg_t *cfg );

• thermostat5_init Initialization function.

err_t thermostat5_init ( thermostat5_t *ctx, thermostat5_cfg_t *cfg );

• thermostat5_set_relay This function controls the relay by setting the state of the ON (PWM) pin.

void thermostat5_set_relay ( thermostat5_t *ctx, uint8_t state );

• thermostat5_get_temperature This function reads and calculates temperature in degrees Celsius [degC] using NTC thermistors.

err_t thermostat5_get_temperature ( thermostat5_t *ctx, float *temperature );

• thermostat5_read_voltage This function sets the voltage reference for Thermostat 5 Click driver.

err_t thermostat5_read_voltage ( thermostat5_t *ctx, float *voltage );

Application Init

The initialization of the I2C or ADC module and log UART set the relay to an OFF state.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    thermostat5_cfg_t thermostat5_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.
    thermostat5_cfg_setup( &thermostat5_cfg );
    THERMOSTAT5_MAP_MIKROBUS( thermostat5_cfg, MIKROBUS_1 );
    err_t init_flag = thermostat5_init( &thermostat5, &thermostat5_cfg );
    if ( ( ADC_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    thermostat5_set_relay( &thermostat5, THERMOSTAT5_RELAY_OFF );
    log_info( &logger, " Application Task " );
    Delay_ms ( 100 );
}

Application Task

The demo application measures temperature in degrees Celsius. If the temperature increases above 30 degrees Celsius, the relay will turn ON, otherwise it will turn OFF. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{
    float temperature = 0;
    if ( THERMOSTAT5_OK == thermostat5_get_temperature( &thermostat5, &temperature ) )
    {
        log_printf( &logger, " Temperatur : %.2f [degC]\r\n", temperature );
        if ( THERMOSTAT5_TEMPERATURE_LIMIT < temperature )
        {
            thermostat5_set_relay( &thermostat5, THERMOSTAT5_RELAY_ON );
            log_printf( &logger, " Relay: ON\r\n" );
        }
        else
        {
            thermostat5_set_relay( &thermostat5, THERMOSTAT5_RELAY_OFF );
            log_printf( &logger, " Relay: OFF\r\n" );
        }
        Delay_ms ( 1000 );
    }
}

Note

For temperature measurement, we used Semitec 103AT-2 NTC Thermistors.

• Beta parameter: 3435 K
• Resistance: 10 kOhms
• Tolerance: 1 %

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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