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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.13
mikroSDK Library: 2.0.0.0
Category: Biometrics
Downloaded: 229 times
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License: MIT license
EEG Click is a Click board™ that allows monitoring of brain activity. Although not suitable for clinical examination, it is quite sufficient to allow some insight into brain activity. EEG Click is equipped with a high-sensitivity circuit which amplifies faint electrical signals from the brain, allowing them to be sampled by a host MCU.
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4714_eeg_click.zip [304.15KB] | 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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EEG Click is a Click board™ that allows monitoring of brain activity. Although not suitable for clinical examination, it is quite sufficient to allow some insight into brain activity. EEG Click is equipped with a high-sensitivity circuit which amplifies faint electrical signals from the brain, allowing them to be sampled by a host MCU.
We provide a library for the EEG 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 EEG Click driver.
eeg_cfg_setup
Config Object Initialization function.
void eeg_cfg_setup ( eeg_cfg_t *cfg );
eeg_init
Initialization function.
err_t eeg_init ( eeg_t *ctx, eeg_cfg_t *cfg );
eeg_read_an_pin_value
This function reads results of AD conversion of the AN pin.
err_t eeg_read_an_pin_value ( eeg_t *ctx, uint16_t *data_out );
eeg_read_an_pin_voltage
This function reads results of AD conversion of the AN pin and converts them to proportional voltage level.
err_t eeg_read_an_pin_voltage ( eeg_t *ctx, float *data_out );
This example demonstrates the use of EEG Click board.
The demo application is composed of two sections :
Initializes Click board.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
eeg_cfg_t eeg_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 " );
log_printf( &logger, " ----------------------------------------------\r\n" );
log_printf( &logger, " ***EEG Click*** \r\n" );
log_printf( &logger, "----------------------------------------------\r\n" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
// Click initialization.
eeg_cfg_setup( &eeg_cfg );
EEG_MAP_MIKROBUS( eeg_cfg, MIKROBUS_1 );
if ( ADC_ERROR == eeg_init( &eeg, &eeg_cfg ) ){
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
Reads ADC value and sends results on serial plotter every 5 ms.
void application_task ( void )
{
uint16_t eeg_an_value = 0;
if ( eeg_read_an_pin_value( &eeg, &eeg_an_value ) != ADC_ERROR ) {
log_printf( &logger, " %u,%lu\r\n", eeg_an_value, time );
Delay_ms ( 5 );
time += 5;
}
}
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.