Library Description

The library provides the user with measurements from ECG sensors and PPG sensors. The user has full control of module settings and reads all registers via I2C communication.

Key functions:

• void ecg6_get_sample_data( ecg6_element_t *element, uint8_t num_sample ) - Get one sample from FIFO
• uint8_t ecg6_ppg_default_config ( ) - Default configuration for PPG sensor
• uint8_t ecg6_ecg_default_config ( ) - Default configuration for ECG sensor

Examples description

The application is composed of three sections :

• System Initialization - Initialize I2C module and all necessary pins
• Application Initialization - Checking communication accuracy and running default configuration for measurement
• Application Task - Measures an ECG signal or PPG sensor and draws a graph on a SerialPlot

void application_task ( )
{
    ecg6_element_t sample;
    ecg6_get_sample_data( &sample, 0x00 );

    if ( DEMO_EXAMPLE == ECG_EXAMPLE )
    {
        plot_ecg_data( sample.element_1 );
    }
    else
    {
        plot_ppg_data( sample.element_1, sample.element_2 );
    }
}

Additional Functions :

• plot_ecg_data ( ) - Sends ECG sensor data to SerialPlot
• plot_ppg_data ( ) - Sends PPG sensor data to SerialPlot

Note: When using ECG measurement - PPG measurement must be switched off ... Drawing speeds vary for PPG and ECG sensor.

Other mikroE Libraries used in the example:

• I2C Librar
• Conversions Library
• String Library
• UART Library

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.