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mikroSDK Library

ECG 4 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.14

mikroSDK Library: 2.0.0.0

Category: Biometrics

Downloaded: 171 times

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License: MIT license  

ECG 4 Click is a complete solution for the development of ECG and Heart-Rate (HR) applications, based on the BMD101, a specialized bio-signal sensing System-on-Chip (SoC).

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  • mikroSDK Library 1.0.0.0
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ECG 4 Click

ECG 4 Click is a complete solution for the development of ECG and Heart-Rate (HR) applications, based on the BMD101, a specialized bio-signal sensing System-on-Chip (SoC).

ecg4_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Jun 2020.
  • Type : UART type

Software Support

We provide a library for the Ecg4 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for Ecg4 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void ecg4_cfg_setup ( ecg4_cfg_t *cfg );

  • Initialization function.

    ECG4_RETVAL ecg4_init ( ecg4_t ctx, ecg4_cfg_t cfg );

  • Reset module function.

    void ecg4_module_reset ( ecg4_t *ctx );

Example key functions :

  • Function performs the uart interrupt routine, reads a data from uart rx buffer and makes a response from the BMD101 device.

    void ecg4_uart_isr( ecg4_t *ctx, uint8_t rx_dat );

  • Function powers up or down control of LDO (Low Drop Out).

    void ecg4_enable_ldo_ctrl ( ecg4_t *ctx, uint8_t state );

  • Generic read function.

    int32_t ecg4_generic_read ( ecg4_t ctx, char data_buf, uint16_t max_len );

Examples Description

This example reads and processes data from ECG 4 clicks.

The demo application is composed of two sections :

Application Init

Initializes the driver, sets the driver handler and enables the Click board.


void application_init ( void )
{
    log_cfg_t log_cfg;
    ecg4_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 ----" );

    //  Click initialization.

    ecg4_cfg_setup( &cfg );
    ECG4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    ecg4_init( &ecg4, &cfg );

    ecg4.driver_hdl = make_response;
    Delay_ms ( 500 );

    ecg4_module_reset ( &ecg4 );
    ecg4_enable_ldo_ctrl ( &ecg4, ECG4_ENABLE_LDO_CTRL );

    Delay_ms ( 1000 );
}

Application Task

Reads the received data and parses it on the USB UART if the response buffer is ready.


void application_task ( void )
{
    ecg4_process(  );
    if ( ecg4_responseReady( &ecg4 ) )
    {
        process_response( );
    }
}  

Note

Use the Serial Plot application for data plotting.

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Ecg4

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


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