#define USE_ARDUINO_INTERRUPTS true
#include <PulseSensorPlayground.h>
const int PulseWire = 0;
int Threshold = 550;
PulseSensorPlayground pulseSensor;

void setup()
{
  Serial.begin(9600);
  pulseSensor.analogInput(PulseWire);
  pulseSensor.setThreshold(Threshold);
  if (pulseSensor.begin()) {
    Serial.println("A pulseSensor Object !");
  }
}

void loop()
{
  int myBPM = pulseSensor.getBeatsPerMinute();
  if (pulseSensor.sawStartOfBeat()) 
  {
    Serial.println("♥  A HeartBeat Happened ! ");
    Serial.print("BPM: ");
    Serial.println(myBPM);
  }
  delay(20);
}