gsr

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GSR Click

GSR 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 : Jan 2020.
• Type : SPI type

Software Support

Example Description

This app measure the electrodermal activity.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Gsr

Example Key Functions

• gsr_cfg_setup Config Object Initialization function.

void gsr_cfg_setup ( gsr_cfg_t *cfg );

• gsr_init Initialization function.

err_t gsr_init ( gsr_t *ctx, gsr_cfg_t *cfg );

• gsr_default_cfg Click Default Configuration function.

void gsr_default_cfg ( gsr_t *ctx );

• gsr_read_value This function read measurement using MCP3201 ADC integrated on Click board.

uint16_t gsr_read_value ( gsr_t *ctx );

Application Init

Initializes GSR driver.

void application_init ( void )
{
    log_cfg_t log_cfg;
    gsr_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 ----\r\n" );

    //  Click initialization.

    gsr_cfg_setup( &cfg );
    GSR_MAP_MIKROBUS( cfg, MIKROBUS_POSITION_GSR );
    gsr_init( &gsr, &cfg );
}

Application Task

Sequential reading of ADC and logging data to UART. Operation is repeated each 500 ms.

void application_task ( void )
{
    uint16_t adc_value;

    adc_value = gsr_read_value( &gsr );

    log_printf( &logger, "ADC Measurements: %u \r\n", adc_value );
    Delay_ms ( 500 );
}

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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