TOP Contributors

  1. MIKROE (2762 codes)
  2. Alcides Ramos (374 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (118 codes)
  5. Bugz Bensce (90 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (139251 times)
  2. FAT32 Library (71748 times)
  3. Network Ethernet Library (57120 times)
  4. USB Device Library (47430 times)
  5. Network WiFi Library (43082 times)
  6. FT800 Library (42403 times)
  7. GSM click (29835 times)
  8. mikroSDK (28077 times)
  9. PID Library (26885 times)
  10. microSD click (26198 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
mikroSDK Library

Heart Rate Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.18

mikroSDK Library: 2.0.0.0

Category: Biometrics

Downloaded: 428 times

Not followed.

License: MIT license  

Heart Rate Click is a heart rate monitoring and pulse oximetry measuring Click board™. It features an advanced oximeter and heart rate monitoring sensor, which relies on two integrated LEDs, a photosensitive element, and a very accurate and advanced low noise analog front end, to provide clean and accurate readings.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "Heart Rate Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "Heart Rate Click" changes.

Do you want to report abuse regarding "Heart Rate Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


Heart Rate Click

Heart Rate Click is a heart rate monitoring and pulse oximetry measuring Click board™. It features an advanced oximeter and heart rate monitoring sensor, which relies on two integrated LEDs, a photosensitive element, and a very accurate and advanced low noise analog front end, to provide clean and accurate readings.

heartrate_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Feb 2020.
  • Type : I2C type

Software Support

We provide a library for the HeartRate 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 HeartRate Click driver.

Standard key functions :

  • Config Object Initialization function.

    void heartrate_cfg_setup ( heartrate_cfg_t *cfg );

  • Initialization function.

    HEARTRATE_RETVAL heartrate_init ( heartrate_t ctx, heartrate_cfg_t cfg );

  • Click Default Configuration function.

    void heartrate_default_cfg ( heartrate_t *ctx );

Example key functions :

  • Using this function we can check if the data is ready for reading

    uint8_t heartrate_data_ready ( heartrate_t *ctx );

  • Using this function we can read IR and RED values.

    uint8_t heartrate_read_ir_red ( heartrate_t ctx, uint16_t ir_buff, uint16_t *red_buff );

  • This function reads data from the desired register.

    void heartrate_generic_read ( heartrate_t ctx, uint8_t reg, uint16_t len, uint8_t data_buf );

Examples Description

This Click features an advanced oximeter and heart rate monitoring sensor, which relies on two integrated LEDs. It is enough to place an index finger on a top of the sensor to get both of the heart rate and blood oxygen saturation via the I2C interface.

The demo application is composed of two sections :

Application Init

Initializes heartrate driver and set the Click board default configuration.


void application_init ( void )
{
    log_cfg_t log_cfg;
    heartrate_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.

    heartrate_cfg_setup( &cfg );
    HEARTRATE_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    heartrate_init( &heartrate, &cfg );

    heartrate_default_cfg( &heartrate );
    Delay_ms ( 100 );
}

Application Task

Reading values from both Ir and Red diode and displaying their average values on the USB UART.


void application_task ( void )
{
    if ( heartrate_data_ready( &heartrate ) )      
    {
        sample_num = heartrate_read_ir_red( &heartrate, ir_buff, red_buff );             
        if ( sample_num > 0 )
        {
            ir_average = 0;
            red_average = 0;
            for ( uint8_t cnt = 0; cnt < sample_num; cnt++ )
            {              
                ir_average += ir_buff[ cnt ];
                red_average += red_buff[ cnt ];
            }                 
            ir_average  /= sample_num;
            red_average /= sample_num;
            counter++;
            if( red_average > 100 && ir_average > 100 )                
            {       
                log_printf( &logger, "%lu;%lu;\r\n", red_average, ir_average );
                counter = 500;
            }
            else
            {
                if ( counter > 500 ) 
                {
                    log_printf( &logger, "Please place your index finger on the sensor.\r\n" );
                    counter = 0;
                }
            }   
        }
    }
} 

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.HeartRate

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.


ALSO FROM THIS AUTHOR

Boost-inv 2 Click

0

Boost-INV 2 Click is a very useful DC/DC voltage converter device, as can output both positive and negative voltage, boosted up to 15V and inverted to -15V, from a single fixed voltage input.

[Learn More]

CAN Isolator 2 Click

0

CAN Isolator 2 Click is a compact add-on board that provides isolated CAN communication. This board features the ISO1042, an isolated CAN transceiver from Texas Instruments. This galvanically-isolated CAN transceiver meets the ISO11898-2 specifications and offers a +/-70V DC bus fault protection, along with the +/-30V of common mode voltage range. The transceiver supports two CAN modes, with speeds of up to 1Mbps in Classic CAN and flexible data rate (FD) CAN, which allows much faster transfer of payload compared to the classic CAN with up to 5Mbps.

[Learn More]

DC Motor 16 click

5

DC Motor 16 Click is a compact add-on board that contains a high-performance single phase reversible DC motor drive with speed control. This board features the ZXBM5210, a fully-featured DC motor drive solution with an average current capability of up to 700mA from Diodes Incorporated.

[Learn More]