Library Description

The library provides generic functions for communicating with the Click board.

Key functions:

• void heartrate5_hwReset() - Function for doing a hardware reset on a click board.
• void heartrate5_init() - Initializes the click board for communication.
• uint32_t heartrate5_getLed2_aled2val(void) - Test if the finger is placed on the sensor.
• uint32_t heartrate5_getAled1val(void) -  Get the raw pulse analog value that will be displayed on MikroPlot.

Examples Description

The demo application is composed of three sections:

• System Initialization - Initializes GPIO, I2C and log structures.
• Application Initialization - Configures the micro controller for communication and initializes the click board. Also the start signal is sent to the MikroPlot application.
• Application Task - This section shows how the data is processed and sent to the MikroPlot application.
   

void applicationTask()
{
 uint32_t sensorValue;

 if(heartrate5_getLed2_aled2val() < 10)
 {
 if(flag==1)
 {
 sensorValue=heartrate5_getAled1val();
 mikroPlot(ms_counter,sensorValue);
 flag=0;
 }
 }
 else
 {
 ms_counter=0;
 }
}

Additional functions:

• void mikroPlot(uint32_t ms_count, uint32_t measurement) - Functions that prepares and sends data to the MikroPlot application.

mikroE Libraries used in the example:

• Conversions Library
• C_String Library
• I2C Library
• UART Library

Additional notes and information

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.